Description
This article describes troubleshooting steps to fix issues where FortiAP 431F does not power on correctly when connected to a Cisco Switch.
Scope
FortiAP 431F or any AT PoE FortiAP.
Solution
- Ensure that LLDP is enabled on Cisco switch so it can correctly negotiate the PoE.
- Configure FortiAP PoE mode to 802.3at static on the FortiAP CLI:
cfg -a POE_MODE=2
cfg -c
[0(Auto detect), 1(802.3af), 2(802.3at), 3(Power adapter only), 4(Controlled by AC), 5(full), 6(high), 7(low)]. default=0
- Configure the Cisco switch with a fixed PoE supply, then restart the physical interface:
power inline static max 26000 (26000 miliWatts = 26 Watts.)
IMPORTANT: Please note that this last configuration is a last-resort configuration and must be reviewed with Cisco support first. It will enable the switch to always provide 26000 Watts despite any device connected to the port, which might burn out devices that cannot handle this amount of power. PoE negotitated by LLDP should always be preferred.
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