I have a WRT54GS, firmware v2.07.1. All my client machines behind it are Windows 2000 Pro. 4 machines connect through the ethernet ports and 2 connect through wireless cards. I like the UPnP feature of the router, but I don't get the same results with all the applications. I am running AZUREUS 18.104.22.168 (a Java Bit Torrent Client) and it 'discovers' and makes use of the UPnP features of the router inmediately! I also have MSN 6.2.0137, but under TOOLS -> OPTIONS -> CONNECTION it says: "You are connected to the Internet through a non-UPnP port restricted NAT." In all my tests Azureus works all the time but MSN never detects UPnP. Is this a problem of the OSs, MSN, the router? Any hints? Thanks.