Okay so I probably figured out what the issue is. Reading Videotron's description I thought that the modem provides only one signal ( either 2.4 or 5 GHz) depending on the situation. Instead, I think it provides both signals, and the PC that connects to the WiFi chooses one signal. So I checked the infos of the WiFi I am connected to and it shows 2.4GHz while on the other PCs it shows 5GHz. When I tried the USB adapter of my friend, the WiFi that I was connected to was already set up to 2.4GHz, I should have forgotten it and then reconnect.
So basically my Network Adapter only works with 2.4GHz and to solve the issue I can buy another Adapter that works with 5GHz.
So basically my Network Adapter only works with 2.4GHz and to solve the issue I can buy another Adapter that works with 5GHz.
