I recently bought a  Netgear CM2000 + XR500 to replace my Panoramic WiFi and want to activate it as my current modem + router. I tried to call Cox but then kept getting referred to another support/placed on hold while they tried to activate my modem for over 2 hours. I am currently trying to activate my modem myself and I get stuck on the screen that shows:

Hmm, we can't find your equipment setup request.