Product and Software: This article applies to all Aruba Mobility Controllers.
If a Power over Ethernet (PoE) LAN switch is connected to an Aruba Wireless LAN Controller and PoE is enabled on the Wireless LAN Controller and also on the PoE switch; then the PoE on the Aruba Wireless LAN Controller stop working.
Note: PoE might work on one or two Aruba controller ports, but it does not work on the rest of the ports.
Fix: Currently this issue does not have a fix.
Workaround: Disable PoE on the ports that connect the Aruba controller and the PoE switch. This should be followed as the Aruba best practice.