Wifi connection for laptop is faulty! The cause and how to fix it

Sometimes after a long time of activity, laptop You suddenly can't catch Wifi for a number of reasons. Here are some causes and ways to fix Wifi connection for laptop failure. Good luck.


– Some laptops have a wifi on / off button on the side of the keyboard, remember to flip the open switch so the computer always catches the wifi.

– If your computer uses function keys (F3, F12, …) to turn on and off wifi, you need to simultaneously press Fn + function button to turn on / off wifi. Here are the function buttons to turn on and off wifi by carrier:

Dell laptop: Fn + F2 or PrtScr
Asus Laptop: Fn + F2
Laptop Lenovo: Fn + F5 or Fn + F7
Acer Laptop: Fn + F5 or Fn + F2
HP laptop: Fn + F12
Laptop Toshiba: Fn + F12

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– For some laptops, pressing the Wifi button will switch you to airplane mode on / off. When airplane mode is off, the computer will automatically start wifi.


Sometimes a modem or a Wifi router has a conflict that prevents a laptop from catching Wifi or because the device has been in operation for a long time, resulting in a hang. You just need to turn off and open the Modem, Wifi Router or unplug the power source and plug it back in, the device will fix the conflicts and the laptop can catch Wifi as usual.

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When you access a certain router, your computer will be provided with an IP address by the router, and this address may change depending on the number of times it is not always fixed, so people call it. is dynamic IP. However, in some cases, the router allocates the same IP range to two different devices, resulting in a conflict and either or both computers cannot access the network. So you have to renew ip to be able to access the network

Step 1: Ctrl + R opens the Run dialog box and type cmd.

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Step 2: Enter ipconfig / release then enter ipconfig / renew.

After completing and receiving the results as shown below, please try to reconnect to the internet.

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Viruses are also one of the main reasons for not being able to access to Wifi because you use unknown software or machines without anti-virus software. If you are lucky, you only need to install free protection software or invest in copyright software to remove viruses. If not, the solution for you now is to reinstall Windows, which is quite time-consuming.

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So Phong Vu has given the causes and how to fix wifi connection errors for laptops that often occur on laptop lines. If you still have questions or suggestions can leave a comment directly below this article.

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