I found the problem. When I replace the SWM awhile ago I reconnected my 2 receivers to the SWM and left the coax that was going to the CCK disconnected. I thought 2 cables were cut by the tech so I didn't need them and put terminators on the 2 connections. I reconnected the 3rd coax which I traced to the CCK and it works fine now.
Thanks to all who helped!