To begin you need to enable the USB Modem Information Widget.
Initially the information on the widget will be grayed out.
When you plug in the SIM card, the MEID # from Verizon and the CCID# from the FortiGate will appear.
Call Verizon to make sure MEID # CCID# are paired.
Initially the IP address that is assigned for this interface is a private IP address on the Verizon network. The original IP you get before receiving the static IP, is not accessible from the Internet
*Note, you will want the interface to be set for DHCP. Even though you have a static IP provided from Verizon, it is assigned by the Verizon network.
At this point, you will
need to provide the APN for your region, so the static IP address
from Verizon is pulled. This is done via the CLI.
(see related article: Configure APN settings on FortiGate/FortiWiFi with embedded 3G/4G modem for Verizon networks.)
set apn <apn code> -> example for west region: set apn we01.vzwstatic
Interface is still set to DHCP.
If you continue to experience issues please open a support ticket @ support.fortinet.com and provide a copy of your config file.