I need to drop some PDA's into our network. The vendor tells me I need to open ports 5500 & 5501 tcp/uda. I think I added them successfully on the server. But, when I try to add them via the router I get an "Illegal Port" message. The vendor isn't much help and I'm not at all versed in the ways of firewalls and ports. The server is running Windows Server 2008 and the router is a comcast/SMC router. Please help. These PDA's are expensive, but they're dead weight until I can get these ports open.