Hi,

I find that while tethering on the Amtrak Northeast Corridor (with T-mobile) I have to disconnect and reconnect every 3 minutes or so. Data simply stops flowing if I don't do this even though I have continuous signal in some places. This problem does not occur when I'm not in a moving vehicle. Is there any known resolution for this? Or is tethering doomed to not work well with handovers?

Sounds like a network issue with the handoff when you move from one tower's coverage to another's area of coverage. The signal may be constant, but the data transmission during this handoff gets cut and doesn't re-establish itself cleanly. I think a call to T-Mobile might be in order.

I didn't have this problem last time I rode NEC from NPN to NYP.

Depending on the OS and the carrier you may get a message " no paths available" indicating the handoff failed. Not a good message but i see it a lot in the Northeast on ATT.

T-Mo doesn't have the best network anywhere. They are the smallest of the "Big 4".