Open wifi...wow..I didn't even think of that. What a shame :(
I don't think anyone has confirmed if open wifi is actually used to force the OTA (just seen some speculation), but I didn't want to take any chances...
Anyone get one in the last few days that was already updated?? I just wonder if they're preinstalling this now, since it's obviously in their best interest to block us from fastboot before we ever get it in our hands if their intention really was ...
I had the exact same issue going from MF9 to NAE, horrible lag waking up the phone, no sound/phone calls, and no wifi. Tried again following the steps below (MF9 > MK2 > NAE) and now everything works beautifully. Thanks draghn/Suntar and Mudavo!
I tried all of the solutions listed here; switching Google accounts, downloading an app, then switching back to my main account solved it. Thanks so much! :)