Last time I noted that, for those of us with separate routers and modems, the IP address 192.168.100.1 may provide access to the modem, through the router. In my limited testing, I found this to be ...

Trying to understand the events involved for a Router to get recognized with a WAN IP address thru a Modem. This is with a CATV ISP (Spectrum/TWC if that matters ...