Comment 19 for bug 1951586

> Should be part of the 'beacon' info. https://howiwifi.com/2020/07/13/802-11-frame-types-and-formats/ has a good overview. I discovered this exchange while observing 'on the wire' with wireshark.

Thanks for the link; lots of useful stuff there!

> > I wondered if perhaps it this only works on some APs?

> That is the impression that I get, the country code info is part of the management frames transmitted by the AP, could be unsupported, not configured, or mis-configured.

Okay, to my mind that brings us back to "need option to specify wifi regulatory domain". It seems the situation with netplan/networkd is "there's no option", and in NetworkManager is "there's no option, but *sometimes* it'll magically work anyway" (although you'll need to go digging in the logs to confirm that :)