Wifi connection always disappearing

Hi @yfanthenial,

Have you checked that the latest WLAN drivers are installed?

Try using the laptop as close as possible to your network router i.e. <20cm and check if you get a stable WiFi connection.

If so, there may be an antenna problem (loose connection) in the laptop.

Here's a teardown video that shows the WiFi antenna being disconnected from the WLAN card at ~2:20 minutes into the video that may help.

You can also download, install and run this free WiFi sniffer program¹ to see if signal interference may be the problem.

The program will tell you the signal strength of your network (and any other visible networks that can be detected by the laptop). The value of the signal is in -dBm so the higher the numerical number, the lower the actual signal strength is. Here's an article that explains it better then I can.

Having a low signal strength can cause instability in the connection. Also sharing the same WiFi channel with another network can also cause problems if the signal strength of their network is high in relation to your network. If there is then one way to overcome this is to change the channel in your router (see your router documentation) to a quieter channel i.e. one with no or the least appearances as shown by the program. Most network routers default to channels, 1, 6 or 11 straight out of the box and most people don't bother to change it when setting up their network.

¹I think that to avoid having to sign up, scroll down to inSSIDer 4 for Windows and download it there as this version is sufficient for what you want.