I had the same problem with my Cradlepoint MBR1400 router/modem with my iPad sim running in it. Sometimes I could get a couple days of it running OK, and other times it would only be a few hours before it would kick me. The router would still show full bars with great signal, but no data would pass through. A simple restart of the cradle point router always fixed the problem. Not ideal though when you are trying to run security cameras in a remote location and the Internet keeps cutting out every few hours.Does anyone else use this with a cradlepoint router? I have one and I can't get it working properly. It will show up and WIFI can be connected to and work for a few minutes, and then it gets shut off. I wonder if ATT is shutting down the data if it's connected to a router instead of in an iPad. The one in my Unite Pro 5G still works perfectly though. I use about 50GB a month on the Unite with no issues. Has anyone else experienced this or come up with a remedy for this situation before?