I am working in a high school where they are running a Windows Server 2008 R2 as a File/Printer server. There is one user that is having issues connecting to his mapped network drive and accessing his documents from his Windows 7 Professional client. He will try to open a Word file stored on the server and the green progress bar will slowly crawl along for a few minutes until the file ultimately can't open. This happens at least once a week, sometimes more. He seems to be the only person having this issue on a regular basis. He also uses remote desktop connection to connect to the server and use an accounting software installed on the server. Not sure if this could be part of the problem. I can ping the server fine from his computer. I have tried doing ipconfig /release, renew, and flushdns, and also restarting his computer, but that doesn't have an effect. The only solution I have found is to restart the server. Could really use some help on this issue.