Ubuntu on Pi Zero 2W Wifi not listed

Question

I can't figure how to setup a Wifi connection on my pi zero 2, running on Ubuntu server 21. I tried many different things and here the results:

• Raspbian lite: everything works fine
• Ubuntu server: can connect on my Android Phone's Wifi but not on my home router. Both using network-config file
• Manjaro: I see a bunch of neighbours' Wifis but not my router

I disabled 5Ghz network to avoid any problem, I also specified bsid, but nothing worked.

Any idea on how I should fix this?

Answer 1

Found the solution. Turns out my router was using channel 13 which is somehow not supported by ubuntu because it not a US channel.