How do I access my cable modem GUI

The WAN outage wouldn't affect Man's private network.  Man could still connect to the logs and see the non-connectivity issues.

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. 

What happens when you enter 192.168.100.1 into your browser:  unreachable, timeout, certificate, etc?

Your ARRIS Touchstone CM8200A may have another private IP address.