@azcat71 Thanks for this information. I am good now. It would be nice if the Arris documentation provide the right IP address for the modem. The User Guide says I P is 192.168.100.1. I believed them...

I just replaced my Arris SB6190 cable modem with an Arris SB8200. My ISP is Spectrum. When I was using the SN6190, I could bring up the Arris Web Manager at 192.168.100.1. When upgraded my modem to...