Have a look at this section from the Arch wiki. It fixed some problems I had connecting to certain WiFi networks. https://wiki.archlinux.org/title/Network_configuration/Wireless#Respecting_the_regulatory_domain
Ubuntu
Have a look at this section from the Arch wiki. It fixed some problems I had connecting to certain WiFi networks. https://wiki.archlinux.org/title/Network_configuration/Wireless#Respecting_the_regulatory_domain