Nighthawk M1 and AT&T

[ccsmith51]

I have a Nighthawk M1 hotspot and an AT&T unlocked SIM. 

In my discussion when I say "connect" I mean no internet.

At times the M1 will not connect.  Other times it connects and runs for hours.  Other times it connects then in a few minutes disconnects.  Then it might reconnect and disconnect again a short time later.

When the internet drops the blue light on the still M1 flashes.  I have 2 - 3 bars signal strength to LTE.  Occasionally I see the Upload / Download arrow flash next to the signal bars, but even then there is no internet.

I took the SIM out and put it in an A&T Unite hotspot and do not have this issue. 

Can anyone tell me what to look at or change?  Thank You.

[JohnPeng]

If you are using MR1100-100NAS SKU with AT&T SIM, the issue may be due to AT&T blocks the SIM plan to be used on M1.

Thanks

[ccsmith51]

Thanks, John.  It is that SKU.  But if they were going to block the plan why would they allow it to work sometimes for hours at a time, and then other times for only a few moments?  Why would they turn it on and off?

[JohnPeng]

This depends on how network sets up the rules to check. Some networks checks when the device tries to connect to the network/. Then the data connection will be rejected right way with the cause of Illegal UE. Some network may check periodically on the blocked devices and disconnect the data connection.

Thanks