Thanks @Jeff I was able to follow your steps without any issues and
presume I am now in a good position for the future. As I was previously
able to resolve my issues with the the power off and restarts, I
continue to have no ongoing challenges. I won...
Thanks @MichaelP that fixed the issue for me. Unplugged my primary
Google Wifi router unit, waited a few seconds, restarted it, then closed
the Home app and restarted it and the internet and this unit were now
online. I had to repeat the proess for m...