Had a bit of an issue with our Epic. For a while tonight, 3G data seemed to have conked out. There were plenty of bars, and 4G and WiFi worked fine. But for some reason 3G data registered "no connection" whenever called by an app. After about 30 minutes it cleared up (not sure if activating/deactivating 4G helped). Anyone else have this experience? Kinda sucked because we were trying to demo video calling at the time and failed miserably.