I did a little bit of experimenting today with the desktop image on the nexus 7. If I disable network-manager and set up the interface manually I can change the regulatory domain without problem, whether the interface is up or down and whether or not it is associated with an AP.
I also noticed that if I set the domain while network-manager has the interface up that the new domain seems to get applied after it stops managing the interface.
I did a little bit of experimenting today with the desktop image on the nexus 7. If I disable network-manager and set up the interface manually I can change the regulatory domain without problem, whether the interface is up or down and whether or not it is associated with an AP.
I also noticed that if I set the domain while network-manager has the interface up that the new domain seems to get applied after it stops managing the interface.