Fortinet 60f

Based on the description, it appears that the UPS switchover results in an ungraceful power interruption to the FortiGate, which can lead to system inconsistencies, file corruption, or unexpected behavior. I would recommend investigating the power infrastructure and identifying why the UPS switchover is not providing seamless power continuity.

Currently, the FortiGate 60F is experiencing an issue when a power outage occurs and the device switches to UPS power.

Upon the power source switch, the FortiGate apparently hangs and stops allowing network traffic—both inbound and outbound.

The method used so far to restore service is essentially to disconnect the FortiGate and reconnect it to the power supply. After performing this procedure, the device typically boots up correctly and resumes allowing network traffic.

However, on one occasion, the FortiGate failed to boot correctly even after being disconnected and reconnected, raising concerns regarding the root cause of the problem.

I agree with Emirjon, this is probably a UPS issue.

I had the same issue a few days ago with a FortiGate 40F. I also use a UPS, and I don’t think the UPS was the problem because it was still powering the other equipment, including the FortiGate.”

And what if the interface is corrupted?