Well, it seems that I was wrong. As I mentioned, with the USB cable, I was able to see photos and run my camera, but not connect to the network. Just for fun, I replaced the USB cable with what I think is a higher quality cable and the network conn...
I get the same error with my 6D mk II. Reinstalled utility, rebooted computer, rebooted camera, etc. I can download photos and run the camera remotely, but can't connect to the server. I assume this is just a case of poor quality control on Canon's...