Wireless USB Modem Pan ID

I have a PR55-17A Wireless USB modem and the PAN ID appears to be set at FBCD. I have disconnected the modem from the computer and removed power but it still seems to be set to FBCD.

Using the Wireless Gateway Node in NodeRed, the only way it will send/receive data is if the PAN ID in that Node is set to FBCD.

I have read that the PAN ID “FBCD” is reserved for configuration communication only. What is the simplest way to change the PAN ID on this modem?

Thank you

pan id can be changed using xctu.
the default run mode pan id is 7FFF and the config mode pan id is 7BCD.