I have a new Aironet 2702i. I have converted it (2702i) to an Autonomous AP and looking to connect to a WLC 2504 as a Workgroup bridge. I am able to connect with the 2.5Ghz N radio, but the exact same policy will not function with the Ghz .AC radio. I had this same problem with the 3602i with the .AC module add-on.
