RTL8822bu Wifi adapter shut down when my RAM running out and system used swap

[tbg]

@tbg

Have you searched the forum and the internet for “Arch Linux realtek wifi can’t see 5Ghz” or similar terms?

@mracobes9

Yes.

I’m thinking your search could have been a little more thorough.

Below is the usual fix:

Wifi adapter not showing 5GHz access points

Be sure you have the crda package installed and that your country code (regdom) is set correctly. You may also find if you lower the channels on the 5 GHz band to 40 or below in your router settings that your adapter will now be able to detect the 5 GHz access point. As already mentioned: