I have an Omega2 and a 2+. I am having the same problem with both.
I can connect initially to the device via wifi and the startup begins. Account, password, and then the search for Wifi. It never finds the local wifi. I have tried in two different facilities. My laptop connects fine in both.
How long should I wait? More than 30 minutes?
Skipping the wifi connect and the update, using terminal and wifisetup, in one facility (WEP) I can find the network, then enter the key, but still no internet connect for update. In the other facility (WPK) wifisetup does not find any networks (30 minutes, still searching - laptop seed it fine).
What am I doing wrong ?