I agree this may be a networking problem, not an MJ problem, that was my first thought but I am not sure. Several other applications can operate OK across the network, the only problem seems to be with media server. The error message I get is, "Cannot establish connection to the server." On the server side, the media server status log does not show this computer as even trying to connect. At the same time, the client does see the entire library on the server computer - probably through the shared drive connection - but cannot play anything in that library. I tried creating a new playlist from the client, and it was created ok on the server pc without a media server connection(?!). I also tried manually setting a port number on the media server then connecting to that port number, but that one didn't work either. Other suggestions?