My EeePC running Ubuntu 14.04 suddenly didn't see my wireless network on channel 13 any more, about July 23 2014.
iw reg get says it's set to
iw reg get on my other laptop running Ubuntu 12.04 and not updated for a while says
country 00 and it works fine.
sudo iw reg set SE solves the problem but only until reboot, what is the correct way to fix this problem?