Just in case you had the same problem that I and some other people were having. The problem was that our wifi setting in our Galaxy Note 2 was turning off automatically and randomnly. Many times while trying to set the wifi parameters. It turned out that AT&T has some apps like "Smart WiFi" that causes problems with the wifi. Once you stop the AT&T apps, the wifi will not turn off by itself anymore. I had various friends that they were about to return the phone back to AT&T until we discover that the AT&T apps were causing the problem. Hope this helps somebody and hopefully AT&T will fix their apps that are causing serious problems with the Note 2 wifi settings.