Beryl AX wifi channel width drops from 80Mhz to 20Mhz

[suihkulokki]

The 5Ghz channel appears to drop from configured 80Mhz to 20Mhz soon after selecting a channel. When choosing auto, Beryl AX always chooses the 36-48 channel and seems to stick at 80Mhz. It is however the same channel my neighbor uses, so I’d like to use to use some other channel.

Is there a way to understand why wifi channeld width drops on other channels?

[admon]

I guess it is because you chose a channel that's a 20 MHz channel instead of an 80 MHz one?

[WolfP]

It depends on where you are in the world and which country code you use. You can't use all bandwidths on all channels.

List of WLAN channels