Does the AIR-CAP2602I-K-K9 require a controller to setup on network? I intended on purchasing the AIR-CAP2602I-A-K9 which I have installed in the past without requiring a controller, but the seller sent me the AIR-CAP2602I-K-K9 instead and I need to confirm that the AIR-CAP2602I-K-K9 requires a controller, so that I can get it exchanged ASAP.
