Strange issue started happening requiring a power off to get data working again from cellular. Pulled the logs and found that the time fails to synrchonise and that seems to be the only issue that matches with the failure. Cellular starts working on WAN immediately after a hard restart. Have updated to the new firmware, and set use GPS for time and the original time server as secondary, but am still getting the failure, although not as frequent.
I want to emphasize that the cellular disconnections do not happen due to timesync failures. It’s the other way around - the timesync fails as the network connection is disconnected. These can be small disconnections that aren’t enough to warrant a healthcheck failure, but can stop NTP from working properly.
Some things that you could check/try:
Is the cellular signal good? Are all of the cellular antennas connected correctly?
Experiment with a different cellular provider.
If you need any more help with finding the reason for the disconnections, feel free to open up a support ticket.
