@Michael-Smith The fix for me was to downgrade my router from AES encryption to TKIP (which required me to also switch it from 802.11n to 802.11g/n mixed mode), and then follow the steps in https://community.onion.io/topic/1149/omega2-fails-to-connect-to-wifi/25 to fix up /etc/config/wireless (although it's possible that after switching the router config the standard setup might have just worked).

It's a bummer that AES isn't currently supported. Hopefully that will get fixed.

@Lazar-Demin As with T Lin, I was also only able to get this to work by downgrading my router's encryption to TKIP (and switching it to 802.11g/n mixed mode). Is it a known issue that the Omega 2+ doesn't work with AES?