Hi,
Is the AP powering ON or not powering ON, in either cases try modifying the LLDP-MED options and check.
LLDP-MED Global Configuration
LLDP-MED is an enhancement to LLDP that enables:
· Auto-discovery of LAN policies (such as VLAN and Layer 2 Priority settings).
· Device location discovery for creation of location databases.
· Extended and automated power management of Power over Ethernet (PoE) endpoints.
· Inventory management, enabling network administrators to track their network devices and determine their characteristics (manufacturer, software and hardware versions, serial/asset number).
To view and configure global Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED)
settings, click LLDP-MED > Configuration in the navigation pane.
For more information refer page 96 of the below URL:
http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-a00003478en_us-3.pdf