Hi Brian, thanks for sticking in there with me. Are you BTW "The 3D Print Creator", the one and only?
Anyways, as you can see in my first post of this thread, all is at it's latest version. In the printer control panel I've never seen "network device" or anything similar appear in the port list.
I wonder whether possibly something like a network broadcast is done to discover the printer, or that an IP-scan is being performed by S3D. I need to get some network sniffing done to figure out why this is failing.
I am thinking maybe the printer is on the 2.4GHz radio and my computer on the 5GHz, and although the same SSID and Access Point, they might not be able to interact. I'll have a look into that.