Fortinet Router SIM Card failover doesn't work

Hello vinowg, 

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible. 

Hello,

We are still looking for an answer to your question.

We will come back to you ASAP.

Hello again vinowg,

I found this answer, can you tell us if it helps, please?

To troubleshoot and configure SIM card failover on your Fortinet router, follow these steps:

1. Check Current Configuratio

To verify if your Fortinet router is configured for SIM card failover, you need to check the current settings related to the LTE modem and SIM card switching. You can do this by accessing the FortiGate CLI and reviewing the configuration:

config system lte-modem     config sim-switch         show     end end 

Look for the following settings:

• set by-link-monitor enable: This should be enabled to allow failover based on link monitoring.
• set link-monitor "modem": This specifies the link monitor to be used for failover.

2. Configure SIM Card Failover

If the failover is not configured, you can set it up using the following steps:

Enable Automatic SIM Card Switching

1. Enable SIM Card Switching by Link Monitor:
   
   

   config system lte-modem     config sim-switch         set by-link-monitor enable         set link-monitor "modem"         set sim-switch-log-alert-interval 15         set sim-switch-log-alert-threshold 5     end end 

2. Configure the Link Monitor:
   
   

   config system link-monitor     edit "modem"         set srcintf "wwan"         set server "8.8.8.8"  # You can use any reliable external server for ping tests         set interval 1000     # Interval in milliseconds for the ping test     next end

Additional Considerations

• Event Logs: Check the FortiGate event logs to see if there are any entries related to SIM card switching. This can provide insights into whether the failover is being triggered and if there are any issues.

• Signal Quality: Ensure that both SIM cards have adequate signal quality. Poor signal can cause frequent switching or failure to switch.

Follow-ups and Clarification Questions

• Have you checked the event logs for any entries related to SIM card switching? This can help identify if the failover is being attempted but failing for some reason.

• Are both SIM cards active and have valid data plans? Ensure that both SIM cards are functional and have active data plans.

• Is the link monitor configured correctly with a reliable server? The server used for the link monitor should be consistently reachable to ensure accurate monitoring.

If you need further assistance, please provide more details about your current configuration and any error messages you might be seeing.