Yea there is an issue where channels 10 11 and 12 are not detected if you use 40MHz.
(That's probably not accurate, it's been a few months since figured out the exact issue).
You can try to configure your router to allow 20/40Mhz it should helps
In my country is Capable to 1-11 channels I think that's why I would never realize xD that issue
Sent from my Motorola Moto Z Play using XDA Labs
Last edited: