http://msmvps.com/blogs/vstsblog/archive/2008/07/09/beware-of-configuration-changes-tfs-might-not-like-them.aspxIf one of the following action are planned you should ready the appropriate documentation: Change the name of your TFS server Join a domain with your TFS or change the domain to which the TFS belongs Change the accounts used for running the TFS servicesenCommunityServer 2008.5 SP2 (Build: 40407.4157)