The latest Cyberoam firmwares 10.4.x and newer have simplied the 3G/4G setups.
Tips:
- disable the sim pin for testing, until its all working
- test the modem in a PC first
- Is the Cyberoam in a backroom, sometimes reception can be an issue.
- most 'apn' settings are stored in the modem, so you can usually leave that blank.
The Cyberoam UTM can support USB modems as a backup or primary connection. Here's how to get it working.