IT seems to be happening once a day. Usually starts when I FaceTime someone. The connection will be made but the ringing does not sound and then when connected to the other person I cannot hear them. If I go into youtube and play a video the sound is also OFF... I have to do a hard reboot... Other than this scenario I am using youtube, amazon video, cnbc thru td ameritrade with NO problems.... The only thing I can find is to re-install IOS- via iTunes... Is that the fix?