Good analogy.
I still am having problems with Tversity media server and the denon. It seems liek very day or two the denon shows it as "TVersity media server (Not Authroized)" and I have to reset the media server.
I have port 41952 set to "open" or "allowed" on my windows firewall on the machine that runs TVersity, I have tjhe port forwarded in my router settings (with the IP address for the computer that has TVersity), and I disabled any other virus protection spyware or firewalls that that computer had besides windows firewall.
The same computer has a media server set up with Windows media player and it never needs to be reset... I can't share flac files with WMP or else I would get rid of TVersity alltogether.
Any other ideas?