Why does the Wi-Fi have a good signal but it cuts and goes slow

Wi-Fi is fine but not working properly

Normally when we have internet speed issues it is because the coverage does not arrive well. We connect with the computer and see that the signal arrives very weak, with little power. But there are other factors that can play a role. We could even see that the signal reaches maximum or almost maximum, but the network is cut or the speed is very slow.

This can be due to different reasons that we must control. To connect properly we must have a good setup, devices that work well, do not make mistakes, that there are no other equipment consuming resources, etc.

We can say that there are small details that can make us go from having a very good Internet speed to a very slow one. Even with maximum coverage we could have failures of this type that affect performance.

Why is Wi-Fi cut off

Why Wi-Fi is slow if I have a good signal? That question is sometimes asked by users. They see that the computer is correctly connected to the network, but when trying to navigate, use programs or any platform, there are connectivity problems. The reasons are very diverse, as we will see.

Connected to a repeater with a bad signal

On many occasions we do not connect directly to the router. In our home, workplace or any space where we connect to Wi-Fi, we can use signal repeaters. There are amplifiers, PLC devices, Mesh systems …

Now, it could happen that we are connected to one of those devices and have the maximum coverage, but instead that repeater is connected to a router that is very far away and the signal it receives is very weak.

This logically is going to cause a weak signal to reach us, we have bad speed and it even cuts out. To avoid this we would have to place the repeater elsewhere. Sometimes we put it in a dead zone or where it receives little power and that leads to what we comment on.

The router or access point is saturated

Another issue to keep in mind is that the router or access point to which we connect is very saturated. This especially happens when we connect in a shopping center, airport or any place where there are many users.

The signal reaches us well, we see in the computer that the power is at maximum or almost, but the speed that reaches us is very limited. We try to open a page or any program and we notice that it does not work well. It could even cut itself out and have to reconnect.

The reason in this case would be that there are too many devices connected and that causes a saturation. The access point cannot handle requests correctly and sends us a bad signal.

We have some malware on the system

There are many varieties of malicious software that can affect our teams. They can arrive by very diverse methods, such as installing insecure programs, opening a dangerous file by mail, clicking on a link that could infect us …

This could also affect the network performance, logically. It could cause a loss of internet speed and outages. This would occur regardless of the signal that reaches us. We may be connected to a router with a very strong signal, but a virus or Trojan may be consuming resources and affecting performance.

To avoid this there is no better option than to have security programs. We can have a large number of antivirus, firewall and other tools that in one way or another can help us keep systems protected. It is something that we must apply at all times and regardless of what type of operating system we are using.

Network card problem

The network card it is a fundamental piece for the connection to work properly. It is what will allow us to surf the Internet, send and receive information. Every device has one and we must make it work properly.

We can have some card problem and this will cause loss of signal, even though it reaches us correctly. We can suffer speed limitation and, ultimately, problems. This could especially happen if we are using outdated firmware. That is why we must always have the latest versions. Of course, it could also be a problem at the hardware level, a failure with the device itself.

To update the firmware of the network card in Windows we have to go to Start, enter Device Manager, click on Network adapters and there we choose the card that interests us, click with the right mouse button and click Update driver.

Update network card drivers

We are using the wrong band

As we know, nowadays we can connect to Wi-Fi through the 5 GHz band and also the 2.4 GHz band. Each of them is better in certain circumstances. This causes a loss of speed in case of being connected to the one that comes worst at that moment.

If we talk about speed, the 5 GHz band is the best. However, it is more unstable and has less distance. On the other hand, the 2.4 GHz has a lower speed, but we can connect seamlessly from a greater distance. What happens if we are connected to the latter and we have the maximum signal? Even if we get optimal coverage, we would not have good speed.

Use of the connection by other equipment

Yet another possibility that we should mention is that there is other devices consuming means. We could have speed problems for this reason. We get the signal correctly, but we cannot achieve optimal performance as there are other computers using the network.

Keep in mind that this will happen especially on slower connections. We could have more limitation and not be able to navigate normally.

Ultimately, these are some of the main reasons why Wi-Fi is cut or slow even if we get the maximum signal. Having optimal coverage is not synonymous with having maximum speed in all cases. There are other factors that can play a role that we must take into account to achieve better performance. We can change the configuration, improve the repeaters we use, update the network card … All this will help.

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