I have installed twonkymedia 4.4 on a linux server and configured it via the web. It has correctly found my media and I can browse everything successfully via web browse. Unfortunately uPnP doesn't seem to be working. None of my 3 Soundbridges see the server and my Vista box picks it up when I browse the network but when I double click and wmp opens it doesn't find anything. When I check clients in the servers web interface it lists all 4 expected clients so it looks like twonky sees them even though they don't see it. One thing that has given me grief in the past is this server runs vmware so it has some additional virtual nics configured for that. The correct ip address is listed first in the list of network interfaces on the server status page????
There is no firewall running on the machine.