*Mar 7 15:20:40.507: %CAPWAP-5-SENDJOIN: sending Join Request to 1x.3y.247.4x
*Mar 7 15:20:40.687: status of voice_diag_test from WLC is false
Also we have entered the CAPWAP ap controller ip address directly into the AP so it shouldn't be an option 43 DHCP issue.
We have experienced same issue while adding some 1142's and found that they had a mesh configure on them out of the box for some odd reason. Take a look at your AP, sh flash: and check. 3602i AP's were delivered in MESH mode so with the advice of Cisco TAC we added the AP's to the MAC filtering table under security. Once the AP's registered we were able to change them to LOCAL mode and they came up as normal.