Hello, this question is outside the scope of our troubleshooting at Cox. However, I'd like to provide as much information as possible for you. Here's some additional information regarding the modem you have provided, http://bit.ly/2MLswFP. Here's the direct contact information for the manufacturer, ARRIS:
Arris Support: 866-362-7747
At this time, your modem is not responding appropriately, and a network outage has been declared in your area. We deeply apologize for the inconveniences caused. -Kevin M. Cox Support Forum Moderator
Thanks Bruce. I think the problem is that my router and Disney Circle are somehow hiding the cable modem. I'll try a direct connection as to get around that. I just it as strange as my last cable modem I was able to see on the network and was able to access its web interface. It was an older Cisco modem.
I'm on the 300/30 broadband service, but I typically get 172/32 for speeds. I was going to see if I can get the web interface to help me check for line levels to see if I can tweak the connection to a better one. I'm not sure if that is a typical reading for connection or not.
@KevinM2, I have tried to call Arris.... Here is what I was told. This CM8200 modem is over 6 years old and they no longer support it directly. I find it funny though that when I was offered a free cable modem upgrade from the COX Communications Customer Service Department to help me be compatible for the connection of the future that I would be sent an (a supposed new) unsupported 6 year old device that the manufacturer wants nothing to do with. The Arris Tech Support Representative promptly wished me well as they said their goodbyes on the phone.