Just got off the phone with AT&T. There is an issue with the jelly bean update that causes your wifi to turn itself off after about 2 minutes into a new connection. When I called about 2:00 pm pst, they told me they were just beginning to get calls about this. The only way to resolve the issue is to do a hard system re-boot. Make sure you back up your music and photos prior. This does take care of the problem.