I killed most of yesterday working on Benny's PC. Weird sh** going on. He'd been running Cachyos Linux since December. The networking stopped working on Thursday. I got involved on Saturday. None of his three wireless devices would work with any Linux distribution. They could see our wireless router, but couldn't negotiate with it. After a few minutes, it would generate a password error. I set my cell up as a hotspot and placed it on top of the PC. After successfully connecting to it, I could ping www.google.com, but I could not browse the web at all. No URLs would resolve (and I tried multiple browsers). I tried three Arch-based distros, but I tried plain-jane Debian 13 as well.
I finally decided to let a local shop look at it. They won't work on a Linux box, so I reinstalled Windows 11. Voila, the wifi is working fine in Windows. WTF, man?!?
I'd tried three wireless devices on four Linux distributions and used two wireless access points. Makes no sense whatsoever.