When my notebook computer is connected to the Internet through my LAN at home or at the office, I have no problem at all connection to a streaming source at http://citadelcc-WABC-AM.wm.llnwd.net. However, if I try to stream the same link from two other computers at home on the same LAN, MPC reports that it "Failed to render the file."

The problem is probably not port related since one computer on the network streams just fine. What's the problem?