You're right. They were back to front. But then it still did't work.

Then I tried setting it to port 80 in the setup menu of the Loxone server, and then it worked.  But I don't want to use that port for security reasons.  So I then reset the port back to 7777 and guess what? It kept working!!

Very strange, but I guess I'll  just be happy it works and not worry about it.

Thanks for the help!