I just purchased a PepWave SOTG. I have a Verizon Pantech UML90 USB Modem connected to it. It syncs up fine and all lights are green until I start to surf the internet. After several minutes it looses sync (goes amber and blinks) with the USB modem. It will then resync automatically after about 5 minutes. This pattern continues.
I have reset the SOTG to factory settings, updated the firmware to surfotg-1.0.26-1260, checked for updates on the UML290 (up to date), the Verizon signal is strong but it still disconnects after several minutes on the net. It will remain all green for hours if not used to surf (whatever good that is)