I'm new to mac but doubt this is even a mac issue, not sure. I tried Microsoft remote desktop to connect to my windows laptop and I get a connection refused. I tried Microsoft remote desktop connection for mac and I get "You were disconnected from the windows-based computer because of network problems", I tried CoRD and get "couldnt connect to <windows ip> The connection timed out". I enabled remote connections on the windows pc, I added the workgroup name to the mac's network settings. I can ping both ways and get replys both ways.