To be continued; watch this space (19:13 zulu, 3/15/2021)
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eta:
motor-fixers @ Spectrum / Comcast
After 4 different "Feel En-gin-eers" and my insistence that they change out the router device, I think that my installation is back to normal.
I'm already my own "Cable Guy" -- I just had to go through all the steps before I went out and purchased my own Cable Gateway and new router; that option is still not off the table yet; time will tell.
TheSons-of-Biscuit eatingField En-gin-eers and Helpdesk cretins ran me around for over a month with "Do-this / Do that" and , "You cannot have more than one Wi-Fi network running off one Cable Gateway; Bullshit! The other devices were operating in "Bridge mode" and had been since initial installation years ago.
For the sake of troubleshooting, I disconnected any and all devices running DHCP giving out IP addresses or creating a Wi-Fi networks for 3 days which, took all the air out of their suggestion / causal balloons.
I don't have the biggest "I-T Pecker" in the crowd but, I know how to use what Cisco gave me.
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