Fortinet FortiGate-FortiWiFi - SIM Card and LTE Data Stability

Connection troubleshooting
l SIERRA
l SPRINT
l TELUS
l GENERIC
If you are using any of the following carriers, you may need to download their LTE modem firmware and load it onto the
internal LTE modem by follow the firmware upgrade guide:
l KDDI
l ROGERS
l TELSTRA
For other carriers, the GENERIC firmware should be good enough and the modem should switch to it automatically.
To check whether the LTE modem recognizes the SIM card:
1.
Disable “connection-hot-swap”
2.
Insert the card to the current active sim slot.
3.
Use “diganose sys lte-modem sim-info” to confirm the card presence.
4.
Use “diagnose test app lted 5” to display signal info.
Note:If the modem stays in WCDMA mode, then the card may not be recognized, and a specific firmware needs to
be loaded.
LTE data connectivity and connection stability
LTE data connection stability has the following composition for FortiGate 30E-GBL and other FortiGate LTE variants:
l Sim card validity
l Device registration
l LTE modem signal reception
l LTE modem hardware integrity
l LTE modem firmware carrier match
l Wireless profile, Apn configuration
l FortiOS software integrity
l Fortigate hardware integrity
Quite a few field tickets related to the so-called connection stability issue turn out to be configuration issues rather than
FortiOS software/hardware integrity issue.
SIM card validity
Be sure to verify SIM card validity with a computer before using it on FortiGate. You must also make sure the inserted
SIM card has good contact with the SIMcard slot and no QMI_UIM_CARD_STATE_ERROR message occurs with the
diagnose sys lte-modem sim-info command.
FortiGate-FortiWiFi 5.0 3G4G LTE Modem Operator's Manual 62
Fortinet Technologies Inc.