I have a WLC 2106 and a 1100 series LAP.
A external DHCP server is configured on the WLC.
When I connect the LAP to the PoE port(port 7 / port 8) of the WLC, the AP is not associating to the WLC.
If I log into the console of the AP, it says, "Not sending CAPWAP discovery message because device does not have an IP" which indicated that the AP is unable to obtain a address from the DHCP server.
I have also tried configuring the WLC itself as the DHCP server. It does not help
But, when I connect the AP to the port of a switch , with no other configuration changed, the AP associates and everything works normally.
Also, if I configurw a static IP on the AP, the AP associates with the WLC when connected to port 7/8 of WLC.
I would be really thankful to anyone who could help me out.