I am in the process of setting up 12 Digi WR44-M800-AE1-RF Transport Modems to connect to various DAS deployments. We are using the standard startup Wizard and are running issues on 4 of the Modems. The SIM Cards we are using are VZW 4G LTE sent to us by VZW. They said they have confirmed that all the sims/mobile numbers are active with the equipment EMI #s provided.
The issue is during the Getting Started Wizard it hangs up on "Waiting for cellular interface to connect" and it eventually times out giving the error "An error occurred while configuring the cellular interface." The link light does not come on the front of the Digi and stays yellow within the GUI. I have tried resetting to factory settings, rebooting, updating firmware, etc to no avail. Any idea what would cause 4 of these 13 hang up like this?