Nighthawk MR1100 Showing "E" in window - no connection

[GummyToes]

Hi guys. I'm trying to get my Nighthawk running and it worked great for about an hour, but then it came up with a "Mobile Broadband Disconnected" message and now it shows an "E" where the 4gLTE text usually is on the display window. It does still show me the ATT name and the signal strength, but the 4gLTE has been replaced with "E". Any ideas?

[GummyToes]

Well looks like this is what you see when ATT bans your sim because you put it in a blacklisted device. Dang Ebay. But at least now it's here for anyone else that has this problem.