I experienced this issue recently where I had a Cisco Wireless 4400 series Controller and some brand new 1140 series AP’s. The problem was this, the access points would connect to the controller, they would get IP addresses, and you would see them listed under the wireless section of the web GUI but the indicator light on them would never turn a solid green and they would not broadcast the SSID’s.
The issue as it turned out was firmware on the controller. This is a known issue with version 4 and below. We upgraded to version 6 and this resolved the issue.