It seems I did this in the past to make it work.
How To: Set a Static IP on Hass.io/HassOS - Home Assistant OS - Home Assistant Community
I placed the thumb drive in when I first tried to boot and it seemed to work. Could it be that the DNS Server is getting changed in the RPi somehow? As you can tell I don’t completely understand what I’m talking about.
Something is certainly awry between the Pi and the Router.