I've tried everything I can think of and nothing's working... so I've come here. When I try to connect to my Windows based file server, it just gives me the error 'There was a problem connecting to the server ''-ipaddress-".' My Windows based machine can connect to the server fine, not a single hiccup, but the Macbook can never connect to it, only able to right after I restart the Server. I suspect it is the server and not the Macbook that's the problem as I can connect to my other Windows machine if I share a folder. Any help? Oh and I'm running Mountain Lion on my Macbook, and the Server is running Windows 7 Ultimate (Needed it to run PS3 Media Server and iTunes). Windows is using Windows Firewall and Microsoft Security Essentials if that helps.