i noticed that the 1242AG does not bring up the Radios, when there is a Power Injector connected.
I see in the Logs of the AP:
%CDP_PD-2-POWER_LOW: All radios disabled - NEGOTIATED WS-C6509 <Switchport MAC Add>
The Module in the 6500 is a WS-X6348-RJ-45
The Option "Power Injector installed" on the WLC is also enabled, with the MAC Address from the Switchport, but no change.
When i disable CDP on the mentioned Switch Port and reload the AP, it comes up and runs fine.
Any ideas, what is causing this problem?