Cannot login to my AT&T account.
For over three weeks, I've tried to access my AT&T account and I keep getting this message, "A temporary system error prevents us from locating your account information right now. This type of problem usually lasts only a few minutes but may continue for several hours. For help right now, contact us. (LGN0817)." I've tried to access my account on three different browsers: Chrome, IE, and Firefox. I've even tried the My AT&T app and receive the same message. Please help with a solution for this!