I wanted to share an issue that support was able to solve for me to help future Google searchers.
I have a Pepwave Max BR1 Mini where the cellular WAN was continually resetting. Inserting a SIM or removing the SIM did not change the behavior. I was not able to check the cellular firmware using the support page at all.
Peplink support was able to diagnose the issue as my WiFi as a WAN signal being too strong, I had the hotspot next to a mesh Wi Fi point and that was somehow overwhelming the cellular signal.
The solution was to move the hotspot a few feet away from the mesh point.
Very impressed with the Max Mini and with the support I received. Thank you!