Fortigate 81E PoE Ports failing

Hi @all

in the last weeks I noticed some strange behaviour of the PoE Ports on a FGT 81E PoE.

The lower Ports (1-4) did not function properly anymore.

.at Devices did not work well, .af seemed to work better.

An .at device on Port 11 for example worked fine.

I also tried to update the PoE Controller FW... no luck.... PoE is still wonky.

For example:

diagnose poe get-port-status 11
Port: 11
Power Status: Delivering Power
Power Class: 4
Maximum Power: 33.00W
Power: 7.20W
Voltage: 37.80V
Current: 0.14A


diagnose poe get-port-status 2
Port: 2
Power Status: Delivering Power
Power Class: 3
Maximum Power: 16.40W
Power: 3.60W
Voltage: 31.50V
Current: 0.07A

The Voltage on the lower ports always seems too low (regardless of the power class) Even the same device on the lower Ports will display 30-31V instead of 37-38V Can anyone confirm that these values are "not quite right" !? Regards, Jan