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Why do I have high latency when using the WiFi network at home and not wired?

Why do I have high latency on WiFi?

Before we start talking about why I have high latency in WiFi networks, we should know a little about how the wireless WiFi networks that we all use regularly work.

Wireless WiFi networks use the network access control protocol CSMA / CA (Carrier Sense Multiple Access with Collision Avoidance)that is, they make use of multiple access by carrier detection and collision avoidance. This protocol is essential because it allows multiple stations (such as wireless clients) to use the same transmission medium (in this case, air). Each team involved in the communication announces its intention to transmit before doing so, in order to avoid possible collisions of the frames in the air. Thanks to this behavior, we will avoid frame collisions and their subsequent retransmission. In case someone is transmitting, a random time is waited to reduce the probability of new collisions.

Basically the communication process in WiFi networks consists of three steps, first we listen to see if the network is free, if it is free we transmit the information, and finally, we wait for the confirmation of the receiver indicating that it has received everything correctly. CSMA / CA solves some typical problems in wireless networks:

  • “Hidden” WiFi clients: a client might believe that the channel is free, when in fact it is not because another client is transmitting and this client does not “hear” it.
  • Exposed WiFi clients: A client might believe that the channel is busy, when in fact it is not because the other client does not interfere with the communication.

In WiFi networks up to WiFi 5, we make use of OFDM (Orthogonal Frequency Division Multiplexing), this technology allows multiplexing a set of carrier waves of different frequencies, where each one carries information and is modulated in QAM or PSK. In WiFi 5 networks, the quadrature amplitude modulation is 256QAM, while in the latest WiFi 6 standard it supports up to 1024QAM, therefore, we can send more data per symbol in the latest standard. In WiFi 6 networks technology is incorporated OFDMA (Orthogonal Frequency Division Multiple Access), which is a huge improvement over the OFDM we had so far, OFDMA technology is the OFDM “multi-user”, allowing us to share the spectrum of a certain channel, this is called subcarriers or subcarriers, and they are ideal for low-power applications. velocity. The channel is divided and divided into groups based on the needs of wireless clients, greatly optimizing WiFi wireless networks when we have dozens of clients connected.

High latency in a WiFi network can be due to several reasons, in some cases only one reason can be given, and in other cases there could be each and every one of the reasons that we are going to indicate.

We are far from the WiFi router or AP

When we are very far from the WiFi router or AP we have a low coverage, this means that the packet will take longer to get from our WiFi client to the WiFi router or AP. The most important thing when we are very far from the access point, is that, normally there are also other WiFi clients transmitting, so we will have to “wait” until the channel is free for us to broadcast, so it could cause latency is higher than normal, and even that there are collisions and we have to retransmit the packet.

Furthermore, a very important detail is that the “slower” customers hurt the faster ones, because they take longer to send their package. When we are very far from the WiFi router or AP, the synchronization speed will drop, and we will have less real speed, therefore, this must also be taken into account.

Many WiFi clients connected at the same time

When there are many WiFi clients simultaneously connected to a WiFi router or AP, the wireless network will be more collapsed, and we will have to wait longer until the channel is free to be able to broadcast. The new routers incorporate technologies such as MU-MIMO and OFDMA that allow to improve this aspect enormously, creating groups to transmit (MU-MIMO) at the same time, and creating subcarriers (OFDMA) to serve all clients.

When we have many WiFi clients connected to the same router or AP at the same time, regardless of whether they are in “stand-by”, they will always be transferring some data, so the occupation of the channel will be greater, and we will have a greater collapse in the wireless network, therefore, we will have to “wait” until the channel is free to be able to broadcast. In this case, the same thing happens as before, if we have many WiFi clients, it is possible that some clients are “slow” either due to their type of WiFi network card or because they have little coverage, and this will affect the rest of the network.

There is a technology called «Airtime Fairness»That allows the WiFi router or AP to provide a certain time to each of the wireless clients to be able to broadcast, in this way, when we are in an environment with a mixture of fast and slow clients, we can improve the performance of the fastest clients because they will not be interrupted by slower clients, speeding up and reducing the latency of the WiFi connection. This feature is ideal in environments where there are dozens of wireless clients connected.

WiFi clients transferring a lot of data

If we have one or more WiFi clients transferring a lot of data, it will be more difficult to find a “hole” in the wireless network for us to be able to broadcast our packet, therefore, the latency will increase without being able to do anything. When we have a wireless client or several that do not stop sending and receiving data, the other wireless clients will be harmed because they will have to wait longer until they can transmit. This could be mitigated by performing a bandwidth control per connected wireless client, so that the same WiFi client is not able to occupy all the available channel time, in this way, the latency of the WiFi connection will decrease.

Interference with other WiFi networks and frequency bands

If our WiFi router or AP is transmitting on the same WiFi channel as other neighboring networks, we could have interference with both your router or AP, as well as your WiFi clients because they will be “occupying” time in the air. These interferences could also cause high latency because our customer will have to wait until the network is free.

The 2.4GHz band has a greater range than the 5GHz band, this is a clear problem for interference with neighbors’ WiFi networks. If we use the 2.4GHz band, it is very likely that we will have more interference with neighboring WiFi networks, and, therefore, we will have higher latency in the connection. If we use the 5GHz band (which has less range), surely we will not have interference with neighboring networks, or at least, we will not have so much interference with neighboring WiFi networks, therefore, if you want to have the best latency you should always use the band of 5GHz. Soon we will have available the 6GHz band thanks to the WiFi 6E, this will allow us to reduce the interference of the WiFi networks enormously by having a new frequency band.

As you have seen, these are the reasons why we could have a high latency in our WiFi connection, now we are going to give you some solutions to mitigate the problem (because surely you cannot solve it completely).

Solutions to mitigate the problem of having high latency in WiFi

If you are far from the router

If you are far from the WiFi router or WiFi access point, the best thing you can do is get closer to the AP that is broadcasting, in this way, you will have better coverage, higher synchronization speed, higher performance and lower latency. In the case that you are a WiFi network administrator, we recommend that you activate the Airtime Fairness functionality, to prevent these “slow” clients that are so far from the AP, harming the faster clients that are close to the access point . Also, it might be a good decision to use the disconnect functions for WiFi clients that are too far away, in order to kick them out of the WiFi network and not harm others.

If there are many WiFi clients connected at the same time

In the case that there are many WiFi clients connected at the same time to the same WiFi router or AP, we have two ways to make this more bearable and not affect latency. The first thing we can do is activate the “Airtime Fairness”, so that slow clients do not harm faster clients. Another option is to install an additional access point to distribute the load of the wireless clients, or a WiFi Mesh system with simultaneous triple band to have a frequency band specifically for the interconnection of the nodes (if it allows Ethernet backhaul much better), In this way, we will be distributing all the wireless clients among several nodes, performing a load balancing.

If you have clients transferring a lot of data

In the event that you have clients transferring a lot of data, the most advisable thing is to limit the maximum bandwidth per wireless client, for example, put each WiFi client connected to our network to download at 50Mbps symmetric speed, in this way, we will avoid that a wireless WiFi client monopolizes all the WiFi bandwidth of the network. In addition, in this case it would also be advisable to enable Airtime Fairness to prevent slow clients from harming faster ones, and to optimize the wireless network as best as possible.

Use 5GHz or 6GHz and change channels if necessary

In the event that you are using the 2.4GHz band to connect, we recommend connecting to the 5GHz band or to the future 6GHz frequency band, in order to have as little interference as possible. In the event that you have interference, changing the WiFi channel will also improve the latency of the connection, in addition, if you use very large channel widths such as 40MHz in 2.4GHz or 80MHz in 5GHz, possibly if you reduce the width of channel (at the cost of reducing the maximum real speed) you will have less interference with other WiFi networks.

As you have seen, depending on the scenario where we will find ourselves, we can perform different actions in order to improve the latency of our WiFi connection.

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How to connect to two frequency bands WiFi 2.4GHz and 5G in Windows

Here we are going to start talking about the hardware we would need to connect in Windows with two Wi-Fi bands at the same time. Then we will check that both connections are active both in Windows and in the router. Next, we will perform performance tests to see if there are differences in performance between being connected to one band or the two WiFi frequency bands. We will do it in two different tests, one near the router and one far away. Finally, we will show what would happen if at some point we stopped receiving a signal from the 5 GHz band.

What do we need to connect to two Wi-Fi bands at the same time?

In this case it should be noted that this situation is more typical of laptops. One thing to keep in mind is that relatively old equipment, adding some memory and an SSD hard drive would still help us to perform most of the common tasks with ease.

What happens is that many of these laptops can only operate in the 2.4 GHz band and comply with the 802.11n standard. This means that, generally for Wi-Fi, if they do a speed test they will obtain results of about 70 Mbps. To solve this, many users in addition to improving the equipment of their laptop have bought a USB adapter to be able to connect to the Wi-Fi network. -F 5 GHz. Thanks to that, now they can easily reach speeds close to 300 Mbps. From my own experience I can assure you that this is the case. After the changes that I made to my team investing a little money, my team seems different.

In summary, the easiest way to connect to two Wi-Fi bands at the same time would be to use:

  • The internal card of the laptop.
  • A Wi-Fi 6 or WiFi 6 USB adapter (coming soon).

For those of you who now have a new laptop, this will also end up affecting you and you will find yourself in a similar situation. Little by little, Wi-Fi 6E routers that work in the 6 GHz band will spread. Therefore, if you want to use these networks, you will have to buy a Wi-Fi adapter that supports them, although today it is on the market there are no such adapters yet.

If we have the hardware required to connect to Windows with two Wi-Fi bands, we can check it by following a few simple steps. For them we will go to Start Menu, we wrote device administrator and we will press enter.

Next, click on Network adapters. Thus, if we have the USB adapter that we bought connected, you will see that you have two Wi-Fi network cards available.

How can we connect in Windows with two Wi-Fi bands at the same time

Before proceeding, comment that the operating system that we are going to use is Windows 10. Normally, if you have bought a USB Wi-Fi adapter that offers you more speed, you will have it on, and also configured to connect automatically. In these cases, if we double click on the Wi-Fi icon on the taskbar we will see something similar to this.

In the red box we can choose to work with the different Wi-Fi adapters. Since I cannot see the name of my 5 GHz Wi-Fi network, I have deduced that Wifi refers to the internal card of my laptop. It is also noted that the 2.4 GHz Wi-Fi network is not connected. Instead, if I deploy it to Wi-Fi 2 I see more networks available including mine of 5 GHz that I already see that it has connected automatically as I had assigned it.

Therefore, as we are already connected to the 5 GHz network, we still have the 2.4 GHz network to connect. So what we are going to do is go back to Wifi and press the button Connect. Here you can see that you have connected.

With this we would already be connected with each adapter to each band, now we are going to check it.

How to check that we are connected to two Wi-Fi bands

If we want to verify that we are connected to Windows with two Wi-Fi bands, we have two alternatives.

  1. From Windows itself.
  2. In the wireless networks section of the router.

To perform the checks in Windows, we are going to Start Menu and we played on it gear icon on the left of Setting. Also another possibility is to type setting and hit enter.

The next step that we are going to follow is to double click on the shortcut of Network and Internet.

Next, on the left side we select the section Wifi. On the right you can see that there are the two Wi-Fi networks to which we have connected.

On the other hand, if we want to check that we have both bands operating at the same time in the router, we will open our Internet browser. In the address bar we put the IP of the router or default gateway. Next, we will enter the password of the router and the user if necessary. Then we will look for the Wi-Fi section where the connected devices appear. In my case these are the ones that were connected:

In the red boxes you can see how one Wi-Fi adapter is connected to the 5 GHz network and another to the 2.4 GHz network. In addition, you can also see the speed at which they are connected. Therefore, we have been able to verify it both in the router and in Windows 10.

Does Windows upgrade with two Wi-Fi bands at the same time?

The best way to find out is by running a speed test. To show the differences, we are going to do the tests in this way:

  1. A couple of meters from the router and about 12 meters in which several walls must be crossed.
  2. It will be connected to Windows with two Wi-Fi bands or only with the 5 GHz one.

These are the results connected with the two bands and close to the router:

Here are the ones connected only to the 5 GHz band and close to the router:

As can be seen near the router, there are no significant speed differences.

Now we are connected with two Wi-Fi bands at the same time away from the router:

To finalize the results with only the 5 GHz band away from the router:

As in the previous case, the results have been very similar. The reason this happens is because Windows only allows you to use a Wi-FI Network card to go to the Internet and does not add the speed at any time. However, there is a fairly common situation where it can benefit us to have it configured like this.

Reason for having both Wi-Fi bands configured in Windows at the same time

Wi-Fi networks at 5 GHz, although they provide us with higher speed, with distance they lose a lot of coverage. In contrast, 2.4 GHz Wi-Fi networks have lower speed, but greater range and coverage. Therefore, it may be the case that in some areas of our home we have coverage blind spots. A good reason to do it would be with a laptop with which we are going to work in different rooms, so we make sure we always have a connection.

One test I ran to verify this was to turn off my router’s 5GHz Wi-Fi network all at once. As can be seen, only the internal Wi-Fi network adapter that operates in the 2.4 GHz band remained connected.

Finally, as a result of having Windows with two Wi-Fi bands at the same time, I did not experience any failures or drops in my connection. Instantly it started working on the 2.4 GHz band and I was able to continue browsing and performing my tasks as normal, Windows automatically detects that a WiFi network has been disconnected, and it will automatically choose the other WiFi network to which we have connected.

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What types of Wi-Fi encryption are insecure and to avoid

Why We Must Protect Wi-Fi Networks

Whenever we use a Wi-Fi network we must ensure that it is properly protected. Otherwise we would be leaving a door open to possible intruders who could attack all the devices that we have connected to that network.

What happens if we use a wireless network that is not protected? We can have very different problems, but mainly we will find these two questions:

  • Loss of speed: without a doubt it is one of the causes that we can suffer if we have intruders in our Wi-Fi network. We will notice a notable decrease in performance, speed problems and even cuts when connecting. This could affect all the teams we have.
  • Information theft: but we could also suffer worse consequences, such as the theft of information. Maintaining security on the network is very important and if we have intruders on our Wi-Fi they could be collecting information from our browsing, as well as infecting computers.

For this reason, we must make sure that we are always using a Protected Wi-Fi, but it is not enough only with the password that we put. We must take into account a fundamental factor that is often overlooked and is the type of security encryption. Not all of them are reliable today, as we will see.

Insecure Wi-Fi encryption types

The type of encryption that we choose for our Wi-Fi network will be decisive to prevent attacks. There are some ciphers that can be exploited and break the password. Something that could put security at risk.

WEP encryption (64 and 128 bit)

Without a doubt we are facing the most insecure and totally obsolete type of encryption. We have here two types of WEP encryption: 64 bit and 128 bit. The latter is superior, it has a greater cryptographic key, but really this is of little use today. It doesn’t matter if we are using encryption WEP from 64 or 128 bit, it’s going to be unsafe.

This type of encryption was launched in 1999, so it is more than 20 years old. Since then, of course, everything has changed a lot. Today, a person with the necessary knowledge and tools can break a WEP encryption without much difficulty. You could even figure out the password in just a few minutes.

Today it is rare to find this type of encryption, although we could see it in older routers and old devices that are not compatible with the latest ones. Whenever we come across this option, whether it’s on our own connection or one we’re trying to access, we should walk away and not use it.

WPA (TKIP and AES)

Very few years after WEP encryption emerged WPA. It came as an update to avoid the problems with the old encryption. This was in 2004, so we are also looking at something that has a lot of time.

Security researchers, over time, have found vulnerabilities that affect this Wi-Fi encryption protocol. For example, the reuse of the initialization vector, which would allow breaking a password.

In this case we can find two options: WPA TKIP and WPA AES. The first is totally unsafe and outdated. It is the standard, the one that appeared first. In the second case we are facing a later encryption, which uses AES. However, the latter is also insecure and it must also be borne in mind that the devices that are compatible with this update are also compatible with WPA2, which would come later, so it is not advisable to use it at all.

WPA2-PSK (TKIP)

The next encryption, which is also insecure today, was WPA2-PSK (TKIP). It is not secure since although it uses a newer standard (WPA2) it combines it with an outdated, old and insecure encryption (TKIP).

Therefore, as was the case with WEP encryption, we are facing an option that is also insecure and that we should not use. It is true that today it is still used in many cases due to the greater compatibility with older devices.

Insecure WPA2 Wi-Fi encryption

Today’s safer Wi-Fi encryptions

We have seen that there are Wi-Fi ciphers that are insecure and could be exploited by intruders to access the network. Whenever possible we must avoid them in our router, but also avoid accessing networks that have these protocols. This way we would improve security and avoid problems. Now we are going to see some types of encryption that are more suitable.

WPA2-PSK (AES)

One of the types of encryption that is still reliable today is WPA2-PSK (AES). Previously we saw that the one that uses TKIP is insecure, since it is an outdated encryption and today it can be broken with the necessary tools. However, the one that uses AES is more reliable.

This is definitely the Better option if we don’t have WPA3 compliant devices, which is the latest standard that we’ll talk about next. Computers protected with WPA2-PSK (AES) will be adequately protected. It is a much stronger encryption option.

It should be noted that modern routers usually have this configuration as standard. In many cases, when they just put WPA2 or WPA2-PSK, they actually use AES and not TKIP. Hence we can be more sure.

WPA3

In this case we are facing the most reliable standard. It is the last one we have available. It comes as a successor to WPA2, mainly after the problems that occurred a few years ago with KRACK. Use 128 bit encryption and it also replaces the way in which keys were shared between devices, now granting greater reliability.

The problem of WPA3 is that nowadays it does not have great compatibility, although there are more and more devices that we can find that work correctly with this type of encryption. However, it will undoubtedly be the option that will accompany us for the next few years and that will keep our Wi-Fi networks safe.

In short, choosing correctly which Wi-Fi encryption we are going to use is very important. We must avoid all those that are obsolete and unsafe, like the ones we have been seeing. It is true that any encryption, no matter how old it is, is going to be better than nothing. But of course, we can always run into an intruder who has the necessary tools to attack us. Therefore, our advice is to generate keys that are totally reliable and, if possible, use WPA3 encryption or, failing that, WPA2-PSK (AES).

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Free programs to share Wi-Fi in Windows and be able to have Internet

Perhaps some of you have heard of or used Connectify. Unfortunately now it is a paid software, but do not worry because we are going to present you some free alternatives. Here we are going to talk about free programs to share the Internet from our computer very easily and quickly, without having to pay anything to use the software.

MyPublicWiFi

One of the Wi-Fi sharing programs that we can use is MyPublicWiFi. We are going to find an easy-to-use software that will turn our PC or laptop into a Wi-Fi wireless access point, a repeater or a multifunctional access point (AP). Thus, any user who is nearby can browse the Internet through its shared use. Regarding the system requirements, you need a 32-bit or 64-bit Windows 7, 8 or 10 computer along with a Wi-Fi card. In case you want to try and download the program, we could do it from the True Software developer page from the following link.

This is the main screen of the program:

It also allows to enable user authentication, then clients will be redirected to their login page to authenticate with access password or accept the terms of use before being able to enjoy the Internet connection.

In case you are interested, here is an installation video:

In addition, it can be used to restrict user access to specific servers, prevent the use of P2P programs and block the use of social networks or advertising. Other characteristics it has are:

  • You can allow sharing a VPN connection.
  • The created wireless network uses WPA2 encryption.
  • View connected devices.
  • Supports the use of QR codes to avoid having to type the password.
  • Bandwidth Manager helps you control the download speed of your users.
  • It allows you to record and track all the URL pages visited on your virtual WiFi hotspot.
  • It supports Wi-Fi Direct for Windows 10.

As you can see, it is really very complete software.

Baidu WiFi Hotspot

The next of the Wi-Fi sharing programs that we are going to see is Baidu WiFi Hotspot. Thanks to this software we will be able to create a WiFi wireless network directly from our PC or laptop using this free software. Regarding the connection, you will not have limitations to share data and you can also connect any device. This is the main screen of Baidu WiFi Hotspot:

To be able to use it, we will need a computer with Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10. If you want to try the program, you can do it from the following link. An interesting thing that this program offers is that it also allows you to send files from your computer to the phone and also vice versa.

The way in which you guarantee security is by using the password that the devices that connect will be required to use. In addition, it has the ability to block any device from connecting to the internet by using a blacklist. Finally, it should be noted that it is well optimized and can be run with guarantees on older computers.

Wi-Fi HotSpot Pro

Among the programs to share Wi-Fi we have one from Microsoft. In case of being a Windows user that does not require any special option, this application may be an interesting option. Regarding the recommended Windows version, it is Windows 8 onwards, so Windows 10 is also included. Without a doubt, it is a safe option that we can download from the page from Microsoft.

If we want to get the application we will have to press the button Get. Then it will redirect us to the Microsoft Store where we will click the get button to install the application. Thus, we can easily create a Wi-Fi access point by following only 3-4 very simple steps that I am 100% sure that if you follow all the steps that are indicated, you will not have problems.

The best of all is that it is free, it is in the Microsoft store with certain guarantees, and if you do not like it you can always try some of the other programs to share Wi-Fi.

OSToto Hotspot

OSToto Hotspot is a very simple program to turn our PC or laptop into a WiFi access point, to which we can connect any device that is nearby. Thanks to this software we can enjoy Internet access for any smartphone or tablet. As for the configuration, it is simple, as soon as you open the program, you will see the name of your new Wi-Fi network and the password. If you want to try it, you can download the program from here.

Here you have the main screen of the program that you can see offers a very simple interface:


As soon as we know the access data we can share it with our visitors, so they can quickly connect to a separate network. In addition, from the program’s control panel we can quickly see all the devices connected to the new network, and if any of them do not belong to your group of family or friends, you can block it immediately. One of the special characteristics is that it has a speed test to know the quality of our connection.

Obviously it is for Windows, also free and in this case only available in English.

Virtual Router Plus

Another of the Wi-Fi sharing programs that we can use is Virtual Router Plus. With this simple software we can transform our Windows PC or laptop into an access point. The connection is completely secure, as it uses WPA2 encryption. If we want to install this program we can download it from the following link. This would be the main screen of the program, and the one we would see when we started it for the first time:

Its way of working is very simple, we put a name to our Wi-Fi network in SSID. Then in Password, we add the password that we want to use and in Shared Connection we put Wi-Fi. For the access point to start working, click on Start Virtual Router Plus. Like the rest of the programs, it is free and can be used on computers from Windows XP to Windows 10.

Create an access point in Windows 10

We have seen several free Wi-Fi sharing programs. However, Windows 10 also offers us the possibility of doing the same, as long as we have a Wi-Fi card in the computer or laptop. What happens is that sometimes we are still interested in doing it on older computers without Windows 10, or that require more advanced features such as those offered by MyPublicWiFi. For those cases, you have to select the one that best suits you from the aforementioned free software.

If we want to create a Wi-Fi access point in Windows 10 we will go to:

  • Start Menu.
  • We wrote Setting and we press enter.
  • We click on Red e Internet.
  • We are going to Mobile wireless coverage area.

Then a screen like this will appear:

In case we want to change the configuration, we will click on the button Edit.

Here we can change the network name and password. Once the changes are made, if we believe it necessary, we will return to the screen where we were.

Finally, if you click on Share my internet connection with other devices Your access point will be created and if you look below you will see the connected devices.

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How to change the priority of network cards and WiFi in Windows 10

Change priority of network cards (wired or WiFi) in Windows 10

The Windows 10 operating system always gives priority to wired networks over wireless WiFi networks, something completely normal because they tend to be more reliable, faster and more stable than WiFi networks. If you want to change the priority or see how you have it configured in your operating system, it is really simple, in addition, you can also configure different forms of the behavior of the network configuration.

To make all these configurations, you must go to «Windows / Settings«, Where we will get all the categories of configuration options that we have available

Once inside here, we have to click on “Network and Internet” where it will take us to the specific menu for the network configuration.

Now we must click on «Change adapter options»To access advanced network settings. When we click here, it will take us directly to “Control Panel / Networks and Shares / Change adapter settings”. So this configuration can be accessed in both ways, our favorite is to go directly to the control panel, although the number of steps are exactly the same.

Once inside this menu, we will have to choose the WiFi network card that we want to prioritize or not, by default the prioritization is “Automatic” and Windows will always give priority to cable connectivity. We choose the Ethernet or WiFi network card and click on «Properties«.

Once we have clicked on “Properties” we put “Internet Protocol version 4 (TCP / IP) and click on” Properties “again:

Now we will see the configuration of the network at the IP and DNS level, now we must click on the part of «Advanced options» that we have at the bottom:

This menu is where we can configure our network adapter in an advanced way. We can add different configurations that we have and give them different types of priorities. For example, if we put a fixed IP, we have the possibility of putting different fixed IP addresses to adapt to the different networks where we are going to connect our PC, by default it is with DHCP, therefore, we will not have this functionality enabled.

Another option is the possibility of configuring the default gateway with its metric, in this way, we can register different gateways with different priorities. The gateway with the lowest metric will have the highest priority, as is often the case with routers and networking equipment.

Right at the bottom we have the option of “Automatic metric” of the network adapter, if we deselect this function and we put a specific metric, we will give priority or not to this network interface. The lower the number in the interface metric, the higher the priority of the network adapter, and the higher the number of the network adapter, the lower the priority. For example, if we put a metric 10 to this wired network adapter, and later we put a metric 5 to a wireless network adapter, the latter will be the one that has priority in the operating system.

As you have seen, it is really easy to change the priority of the network adapter through the graphical user interface, however, we also have the possibility to do it through the console with Windows PowerShell.

Change priorities with Windows PowerShell

If we want to do it with Windows PowerShell, what we have to do is open it with administrator permissions (Run as administrator):

Once inside the console, we can put the following command that will show us the priorities (metric) that the different adapters have in the “InterfaceMetric” section:

Get-NetIPInterface

If we want to change the priority of a certain adapter, we will simply have to put the following:

Set-NetIPInterface -InterfaceIndex INDICE -InterfaceMetric METRICA

For example:

Set-NetIPInterface -InterfaceIndex 20 -InterfaceMetric 5

If we run the display command again, we can see that the changes have been applied correctly:

Get-NetIPInterface

If we want to leave it as it was with the automatic metric, we must execute the following command:

Set-NetIPInterface -InterfaceIndex 21 -AutomaticMetric enabled

In this easy way and with commands, we will be changing the priority easily.

Change priority of saved WiFi networks in Windows 10

If, in addition to changing the priority of the network cards you have on your computer, you also have the possibility of changing the priority of the WiFi networks saved on your computer. In this case, what we must do is open a “cmd” console with administrator permissions:

Once inside, you will have to execute the following command to verify the different WiFi network profiles saved on your computer:

netsh wlan show profiles

The first thing we will see will be a list with all the Wi-Fi networks that we have saved in Windows 10. As we can see, the networks are ordered according to their age, with the first network we connect to being the one that heads the list and so on. until the most recent network, the last.

View list of saved Wi-Fi networks in Windows 10

To change the priority of a network we must then type the following command, entering the corresponding name of the network to be modified:

netsh wlan set profileorder name="nombre_de_la_red" interface="Wi-Fi" priority=1

In this way, the network we have chosen will have «priority 1«, That is to say, the maximum above the others. In the case of wanting to order the priority of other networks, we can do so by modifying the name of the network and the value of the parameter «priority»By 2, 3, 4, etc.

Change priority of Wi-Fi networks in Windows 10

As you have seen, it is really easy in Windows operating systems to change the priority of the WiFi networks to which we are going to connect, in this way, we can prioritize some SSIDs (WiFi profiles) over others when connecting. For example, if we have a 2.4GHz network and another 5GHz network, we can prioritize the connection to the 5GHz band network, which will normally provide us with higher performance and less interference with neighboring networks.

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Why does the Wi-Fi adapter disappear

Connecting to the Internet wirelessly has gained a lot of weight compared to cable. We have more and more compatible devices and also technology has advanced by offering greater speed, stability and quality. However, on many occasions problems may arise. Errors appear that prevent us from navigating the network correctly. In this article we will explain why the Wi-Fi adapter disappears and what can we do to solve this problem and be able to navigate normally.

Reasons for the Wi-Fi adapter to disappear

There is no single reason why the network card wireless on our equipment. This could be caused by different errors and problems. Hence, we must at all times know the main causes and manage to remedy the problem to connect to the network.

Lack of drivers

Undoubtedly one of the main reasons that the Wi-Fi card disappears or that it never appears in our system is that we do not have the drivers properly installed. Generally operating systems such as Windows usually detect well the devices that we connect and recognize them without having to install anything additional. But sometimes it could happen that the lack of drivers prevents us from using them well.

Therefore, something essential is to make sure that we have all the drivers installed correctly. We must always try to download them from official sources, to avoid problems that may affect us.

Outdated network card

Another reason that the Wi-Fi adapter disappears is to have the drivers outdated. Many users overlook this fact and it is very important. We must always keep everything updated to avoid problems of this type, in addition to being able to make use of the improvements that have been included.

Malware on the system

There are many security threats that can affect our computers. There are many types of viruses, Trojans, and other varieties of malware. They could affect the system, the installed programs and also the hardware itself. This is what could happen to the network card.

It is possible that the bug that we cover in this article is due to some type of malicious software. This could be causing device conflicts and affecting our security and performance.

Physical problem with the card or connectors

Without a doubt, it is another reason why the Wi-Fi network card is disconnected and does not appear. There could be some kind of physical problem, something was burned component or damaged by some blow. In this case it could work momentarily but have continuous cuts and problems.

Software conflict in the operating system

These types of failures often occur after a system update. It is very important to have the equipment with the latest versions, but sometimes after changing the OS version there may be conflicts with the drivers. It is another reason why the network adapter could suddenly disappear and we cannot connect wirelessly.

Generally, it is solved by also updating the card drivers or making sure that the operating system update has not been cut for some reason. In an extreme case we can always revert the changes and wait for a future update.

Tips to avoid network adapter problems

We have seen what are the main reasons for the Wi-Fi adapter to disappear. We have seen that it can occur for very different causes, so it is also advisable to take into account some possible solutions that we are going to give to solve this type of error.

Have everything updated

Something essential to maintain proper functioning at all times is to have our upgraded equipment and adapters. In this case, it is essential to have the latest version of the Wi-Fi card, but it is also essential to have the operating system itself.

To update the network card drivers in Windows we have to go to Start, look for Device Manager, go to Network adapters and look for the card that interests us. We have to right-click and click Update driver.

Update network card drivers

Keep equipment safe

Of course something that can not be missing is to have our protected devices. We can make use of many security tools. An example is having an antivirus, firewall and other programs that help prevent the entry of viruses and any malicious software.

This is something that we must apply regardless of the type of system or device that we are using. Security problems can come through different means and it is essential that we are protected at all times.

Reset network settings

Whenever we have a problem like this, such as the fact that the wireless internet adapter disappears, we can to reset network settings. This can fix many similar bugs in a simple way.

To do this we have to go to Start, we enter Settings, we go to Network and Internet and there we look for Network Reset. It is the one that appears at the bottom of the window. What you are going to do is remove and reinstall the network adapters, as well as set the original settings.

Reset the network

Restart the router and device

This point is basic. When we have any problem, a possible solution is to restart. We refer to restart both the equipment and the router, since in this way we can fix failures that may appear related to the network.

Now, in the case of the router, we must keep it off for at least 30 seconds. In this way the restart will be correct and we will be able to turn it on again and check if the error has been solved. It is a simple procedure that we can carry out easily.

In short, these are the main causes and possible solutions that we have to avoid the error that the Wi-Fi adapter disappears. We have seen that it can occur for certain reasons and it is always advisable to maintain the security and proper functioning of any equipment connected to the network. In this way we will be able to navigate without any complications and we make sure that our devices work well.

The article Why the Wi-Fi adapter disappears was published in RedesZone.

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How To Make Your Laptop Wi-Fi Good And Have Faster Internet

Tips to improve laptop Wi-Fi

When we use a laptop, the most normal thing is that we Let’s connect through Wi-Fi. It is true that we can also use the network cable to navigate, but if we are looking for mobility and being able to connect from anywhere, the wireless network is the best solution. It is something that has gained more and more weight, especially due to the notable improvement of this technology and the fact that there are more compatible devices.

The problem is that sometimes it works slow, there are cuts, the coverage is not very stable and, ultimately, there are small bugs that can prevent us from browsing normally. Luckily we can take into account certain tips to try to improve speed and quality. This way we will be able to surf the net without interruptions, with the greatest possible stability.

Keep in mind that for everything to work well we must not only focus on the main device, which in this case would be the laptop. It will also be necessary to take into account that the router or access point works correctly, as well as the fact that there are no intruders on the network that can hinder the proper functioning and affect us negatively.

Putting a USB Wi-Fi adapter

Undoubtedly a very interesting option that we have to improve the Wi-Fi of the laptop is to use a USB Wi-Fi adapter. Our laptop will have an internal network card that is normally enough for browsing. However it may be limited, it may not be as powerful and cause some problems when we are far from the signal source.

Therefore, a first tip that we give to improve Wi-Fi is to put a USB adapter. There are very diverse ones, with different characteristics and also prices. This will improve the performance of an internal network card, which are usually more limited.

Install a more powerful antenna

Following a bit the thread of what we mentioned about the possibility of installing a USB Wi-Fi adapter, it should also be noted that many models allow adding a more powerful antenna. This is very interesting if the problem we have is coverage and we want to connect to an access point that is very far away and have all the guarantees and avoid problems.

Installing an antenna that is more powerful, that has a greater range, can help us to improve the wireless connection significantly. We must make sure that our adapter is compatible and allows us to include a superior antenna with which we can improve the coverage and speed of the network.

Update the network card

We can also take into account the importance of always keeping our own updated network card. It does not matter if we are using the one that comes with the laptop or we have installed a new one. We must always update the drivers and keep the latest versions.

On the one hand we are going to improve performance and thus also achieve the latest news. But we are also going to improve security. Sometimes vulnerabilities emerge that can be exploited by hackers to carry out their attacks.

To update the network card in a Windows laptop we have to go to Start, we write Device Manager, we go to Network adapters, we select the card that interests us, we click with the right mouse button and we click Update driver.

Change the band we connect to

Are we connected to the Wi-Fi band more optimal? Without a doubt it is another point that we must control to improve the speed of Wi-Fi in a laptop. As we know, we have the possibility to connect to the 2.4 GHz band and also to the 5 GHz band.

Generally speaking, the 5 GHz band is the best for maximum speed. It is useful if we are very close to the router and there are no walls or walls that can interfere. On the other hand, the 2.4 GHz band is better to connect away from the access point, since it is less sensitive to distance and possible walls.

Install Wi-Fi repeaters

Yet another option, although in this case it is not so directly related to the laptop, is to install Wi-Fi repeaters. We can use network amplifiers, PLC devices or even use an old router to carry the signal to other areas. All of these gadgets can make connections more stable and have fewer problems when connecting from further afield.

In this way we can improve Wi-Fi coverage and be able to connect with our laptop without speed problems. It is a very interesting alternative and we have many devices at our disposal that can help us.

Keep equipment safe

The safety it is a fundamental factor at all levels. If we have malware, if we have suffered some kind of attack on our computer, it can also affect the performance of the Internet connection. Hence, we must always have security programs, keep equipment updated and preserve the security of the systems at all times.

There are many options that we can take into account to improve the security of our laptop, but without a doubt common sense is one of the main ones. Not making mistakes will help us avoid problems of this kind. This also applies when it comes to making your wireless connection work as well as possible.

With these tips we will be able to improve the Wi-Fi of the laptop. The objective is none other than to ensure that the speed is adequate, that there are no cuts and have good stability. There are different factors that come into play, as we have mentioned, but many of them depend on the user himself and how he configures the equipment.

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what they are and how to avoid being a victim

Protecting wireless networks is very important

Nowadays it is very common to connect to the network through wireless networks. Wi-Fi has been improving little by little and offers a quality comparable to connecting by cable. This is something that a few years ago did not happen. In addition, we have more and more devices compatible with this technology.

All this makes it essential to adequately protect our networks. We must prevent the entry of intruders that may affect our Connection, as well as reducing the impact that a brute force attack may have against our devices. It is therefore very important to maintain security.

But keep in mind that there may be many types of attacks that affect us. Some arrive due to vulnerabilities in our network and the devices we use. We can find that a hacker exploits a security flaw and has full access.

One of these vulnerabilities or problems that we can find is what is known as FragAttacks. It is something that could damage our devices and put the security of the wireless network at risk.

What is FragAttacks

FragAttacks is the name they gave to a series of attacks that can affect the Wi-Fi devices. We can say that it affects the vast majority of devices that have this technology available. It can especially affect what is known as the Internet of Things, which is all home computers with access to the network.

A hypothetical hacker who had access to our network, found nearby, could exploit the bug and inject code into plain text. It could control certain operating systems that are vulnerable and have not received updates.

If an attacker had access to the network, to the devices, he could control them. For example, you could access our television and have total control to see possible installed programs, initiated sessions, personal data …

We can say that millions of devices have been affected by these security flaws. It is not only about a specific vulnerability, but there are 12 that have been revealed. Each of these can be exploited in a different way and also put security at risk in a different way.

As soon as you are vulnerabilities were detected, the manufacturers quickly got to work to try to solve them. They released patches to correct the problem and allow users to use the computers normally, without compromising security at any time.

Prevent Wi-Fi Attacks by FragAttacks

We have seen what FragAttacks is and how it could put our devices at risk over Wi-Fi. It is very important to be protected and avoid being victims of this problem, as well as any other similar vulnerability that can affect our wireless networks. We are going to see some important tips to keep in mind.

Update all systems

A very important first point is to maintain the systems correctly updated. We have seen that FragAttacks attacks are based on vulnerabilities in Wi-Fi enabled devices. We must therefore always have the latest versions, have all the patches installed and correct any errors that may appear.

This should not only be applied to the operating system itself, but also to the firmware of the network cards and router. This last device is very important for our day to day life and must be properly protected. Many users overlook the importance of adding the latest versions.

Beware of OS that does not receive updates

Are we using a old operating system? That could be especially a problem. We are talking, for example, of Windows 7, which no longer receives security updates. Therefore, if vulnerabilities such as FragAttacks appear, it is more difficult to correct.

In these cases, when we are using an old OS, it is best to choose to upgrade to the higher version. It is convenient to avoid obsolete systems, which do not receive periodic updates and improvements. Otherwise we could have important problems that affect us in our day to day.

Use encrypted connections

When browsing the Internet, it is essential to do so through encrypted sites. Vulnerabilities such as the ones we mentioned can take advantage of the use of an unencrypted HTTP website, which could lead to the leakage of information and that hackers have access to our data.

VPN to use public networks

An alternative in case we have to connect to public Wi-Fi networks, which may be insecure, is to use services VPN. It will encrypt our connection and allow us to browse safely. This way our data will be safe and there will be no leaks in case we run into intruders who can take advantage of their knowledge to attack us.

Protect the network

We must also mention the importance of adequately protecting our wireless network. We must always have a good password, not only to avoid FragAttacks attacks. That key must be unique, totally random and make it as difficult to find out as possible. It must contain letters (uppercase and lowercase), numbers, and other symbols. In this way we can protect our Wi-Fi to possible intruders.

Always use security programs

In addition to everything mentioned, it is worth remembering the importance of using security programs. Having a good antivirus is very important. Also install a firewall and other tools that can help improve reliability when using networks and avoid being victims of very diverse attacks. Luckily we have a wide range of options. They are available for all types of operating systems.

Ultimately, by following these steps we can avoid FragAttacks vulnerabilities. Mainly the most important thing is to have everything updated. In this way we will correct problems that may be exploited by third parties.

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Enable, disable or connect to Wi-Fi from the command line

Managing Wi-Fi well is very important

As we have indicated, having wireless networks today is very important. We have more and more devices available with Internet access without the need to connect cables. We especially talk about what is known as the Internet of Things. They are all the computers in our home that have network access.

This makes it very important to correctly manage the Wi-Fi network. It is essential to configure the equipment properly so that there are no problems, keep them updated and be able to correct any problems that may appear. For this we can use the operating system’s own configuration and there manage everything.

The goal should be to have connections in good condition, offering good speed, quality and stability. We must also avoid security issues that can be exploited by hackers to carry out their attacks. Hence, having good passwords and security tools is vital.

However sometimes complications can arise. Problems may appear that endanger our equipment, the proper functioning of the network and, ultimately, that there are failures when connecting. We are going to have to carry out some tasks to try to solve it, as it would be disable Wi-Fi and turn it back on.

Disable Wi-Fi in Windows from Command Prompt

We can take into account several points so that the wireless network works well in case of failures. For example, we can restart the router and computer, scan for threats, update systems … But sometimes it is necessary to disable Wi-Fi.

We have the option to do it through the menu and settings of Windows 10, which is the operating system most used by desktop computer users. But sometimes this is not possible for different reasons. It may be that the function is not enabled, that we have some malware that prevents us or that we simply want to opt for an alternative.

That alternative is the command line. Windows has the built-in tool Netsh. It is a utility that allows us to manage the network, carry out configurations and be able to detect and solve possible problems that appear at any given time. One of those options is to disable Wi-Fi, which is what we are going to explain.

Access the Command Prompt

The first step we must take is to access the Symbol of the system. To do this you have to go to Start, write Command Prompt and open it with administrator permissions. This is important to be able to execute certain commands.

Once opened, you need to know the Wi-Fi interface name that we want to disable. It would be the network to which we do not want to connect or we want to deactivate to reactivate later and thus solve certain problems that may have occurred. If we know the name, we simply write it down or take it into account to later write it.

In case we do not know at that moment what the name of the network interface is, we must execute the command netsh wlan show interfaces. It will show us a series of data, such as the MAC address, the network to which we are connected, the type of encryption … And we will also see Name. It is the first option that appears to us.

As we see in the image, the normal thing is that the name of the interface is Wi-Fi. This is exactly what we need for the next step.

We have to run the command netsh interface set interface name = »Network-name» admin = DISABLED

Here you have to change “Network-name” by the name of the interface, which in our case is Wi-Fi. It would look like this: netsh interface set interface name = »Wi-Fi» admin = DISABLED

In this way the Wi-Fi network will be disabled. It will take a few seconds and we will see that the Wi-Fi icon on the taskbar automatically shows us that it is not available. If we click on it we will see that no networks appear and that, if we are connected wirelessly, we have run out of Internet connection.

Re-enable Wi-Fi

Now we have already disabled the Wi-Fi interface. Therefore the next step would be to enable it again. In this case we do not have to change much compared to what we have done previously. We would have to execute a similar command, where we only change ENABLED to DISABLED. Therefore, it would look like this: netsh interface set interface name = »Network-name» admin = ENABLED.

In our case, where the interface name is Wi-Fi, the command would be netsh interface set interface name = »Wi-Fi» admin = ENABLED.

Enable or disable Wi-Fi at the command line

As we see in the image, once we execute one or the other command, nothing more than that appears. You just have to wait a few seconds for it to run (in the case of enabling the network it takes a little longer) and voila.

Therefore, following these simple steps we can enable or disable Wi-Fi in Windows 10 from the command line. We do not have to install anything additional, just know what the name of the network interface is and run it as we have shown.

Disconnect Wi-Fi on the command line

We have explained how to disable Wi-Fi completely. This means that we will not be able to connect to any network, unless we re-enable it again. But what if we want to disconnect a specific network? We can also do it from the command line.

We go back to Start and open the Command Prompt and this time we execute netsh wlan disconnect. In this way what we do is turn off the Wi-Fi. We will automatically disconnect from the network, in case we are inside.

We can also connect to a specific network. We would have to execute the command netsh wlan connect = ”network-name”. You simply have to change “network-name” by the name of that specific network.

In short, through the Windows 10 command line we can control Wi-Fi. We have seen how we can disable it, disconnect it or connect to a specific network. Simple steps that can come in handy in certain circumstances to solve some errors.

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How to avoid latency spikes and WiFi outages when browsing or playing games

How to measure latency and how important this is

Now that we know that the speed, whether downloading or uploading, is not the only important thing, let’s see how to measure latency and how having a high latency affects our connection.

What are latency and ping really?

Latency is the response time of the server to receive and send the information of the requested content. That is, the time that elapses since we make a request for an information package from our computer, and it arrives back to show us the content of the requested package to the target server.

The ping is what we use when measuring that latency, which we will measure in milliseconds, therefore, it will be the time it takes for your local connection to communicate with a remote computer on the network. Surely you will know it for being the third piece of information that every speed test we carry out on our connection gives us. In the first place, it will give us the download speed, then the upload speed and, finally, the ping along with the name and location of the node to which we are connected (in some tests, not in all that we find on the Internet).

Now that we know what both terms refer to, we assume that we understand that the lower the ping, the better for our connection. Latency will also depend on several factors that we discuss below.

  • Type of contracted connection (ADSL, fiber optic or mobile Internet).
  • The router that we have in case of connecting through a physical service.
  • Whether the connection is via cable, Wi-Fi, or mobile data.
  • Coverage and saturation of the Wi-Fi network in case of being connected in this way.
  • Coverage and distance to the nearest antenna in case of using mobile data.

Symptoms of high latency

It is clear that there are cases in which we will not notice high latency, since sometimes it is not what is needed for an application or service to work correctly, it is the case of applications or services in which the connection is primarily one-sided , that is, that it depends much more on the data that the service sends us, than on the response on our part, services such as Netflix or YouTube, can work correctly with high latency (as long as the speed and bandwidth accompany with necessary).

However, there are services and applications where latency is absolutely essential, an example of this are the online games or the applications of video call like skype. If you are a regular at online games, either through a computer or through a game console, surely you have a teammate who complains about pinging, because he already knows the concept and knows what it is about, or who complains because the game “jerks” or opponents teleport from one place to another instantly, you may also hear this called “lag«We are talking about the same thing, latency. This is caused because having a high latency, the time it takes to reach your position or that of the enemy is too high and when you want to load the next location of the same, it is no longer there.

They are equally easy to detect latency problems in video calling applications, we will suffer communication delays, we will see how we finish speaking and it takes the other person a few seconds to see how we finish speaking, it is also possible that we notice that the audio is not going synchronized with the video, it is another clear symptom of high latency.

Another point to keep in mind is that if we have high latency and we are connected via Wi-Fi, we may suffer network outages. We must identify this quickly since we can think that it is a problem of saturation of the wireless network or another type of problem that it may have, such as poor coverage in the area of ​​use, and it really will not be the case.

What to do to lower the ping

Now we go with the actions that we can take with the clear objective of avoiding all the symptoms mentioned above.

  • Bottleneck – We have to take into account that we have a single entry and exit to the Internet, for all the devices that we have connected to the Internet within our local network. If we want the ping to go as low as possible, we must avoid using other devices abusively, by this we mean not performing, for example, massive downloads or using P2P from another computer on the local network, this will affect not only latency , if not also to the connection speed. In short, prioritize the connection for the team with which we want to operate.
  • Wireless coverage – To keep latency low and speed high within a Wi-Fi network it is essential to be within the coverage area where the router offers us better connectivityIf where we have the equipment we are working with does not have a good wireless connection, we will have to do something to expand the coverage, either by using repeaters or other types of devices.
  • Router – The router is the vital complement within the connection, If our router is not able to efficiently manage the Internet connection, this will cause us multiple problems, among them, an increase in latency. If we see that we fail here, thinking about investing in a new router will be the best idea, as we have recommended on other occasions, we must not skimp when it comes to acquiring the most important equipment in our entire network.
  • Avoid using VPN – If the use of a VPN for our connection is not fully required (for work reasons, for example), we must avoid using a connection through a VPN as well as try to connect to a local server. The VPN, due to its own operation (it is a service that treats our data in a safe and confidential way) will cause us a ping increase that we cannot avoid. In turn, if we try to access a local server, in case the application or service we are using has one, of course, we will reduce the ping, since the connection will be made against a server that will be closer to us. .
  • Clean equipment – Must always have our team with an antivirus / malware installed and updatedMany of these malicious programs abuse our Internet connection, resulting in increased latency, which is exactly what we want to avoid.
  • Avoid proxies – Proxy servers are very useful when it comes to securing a connection (thanks to encryption), but as in the case of the VPN, the use of these servers and their advantages will add a few milliseconds to our clock. it measures latency, so if it is not essential, we will refrain from using it.

If you have latency problems, following this small guide with tips for detecting the problem and putting the means to solve it, you will surely get a quite remarkable improvement in your connection. When we talk about certain applications or services, every millisecond counts and we want to help you not have any problems of this type.