@pacasvi
Meh. Except that the #ATT #2WIRE router for my #fibre line only seems to allow on (1) #cascadedrouter *OR* another #network beneath it, or neither. I don't want to get into the #hairball of a multi-layer hierarchy of routers, when then really should be (IMHO) in #parallel, so it's time to consult AT&T. Of course, they let me type in my whole query before telling me I had to log in, and cleared the clipboard after I had done that -- so I lost the whole missive. Grr.