gateway keeps dropping internet

So it is safe to assume you have the Nokia gateway unless you have had it replaced very recently. If you post the internet connection metrics and the information about the cellular network I would be happy to take a look at the information and see what suggestions I could come up with. If you have run any testing with speedtest.net please post data or explain common download speeds and upload speeds and what speedtest.net reports for ping latency and jitter for a given test run. With some data to talk about it might help explain what might be possible. 

Have you been told where the tower is your signals come from? Have you used cellmapper.net to locate towers in the area and see what cell signals are around you and how far away the towers are? With information on what tower your gateway connects to and how far away it is and knowing the signals and signal strength and quality maybe we could make some headway and improve upon the situation.