The pin verification thingy happens when unlocking, or when entering the pin for decryption? (I see this when entering the pin for description after boot)
What mode of afwall are you using? Blacklisting or whitelisting? The latter could be quite difficult, so i went for blacklisting, even though i consider me fairly experienced (but not experienced enough to feel sure about which subsystem does what better connection in Android besides standard definition. Browser is browser, and so on. But gcm push and so on gets complicated)
I also sometimes get the x and a dysfunctional network connection from time to time, but not very often
Right now i have the problem that alternating wifi and mobile data leads to mobile data not working any longer, but I’m on an intermediary build of los so I’m waiting for the next “official” before i complain