I have two Windows Server 2008 SP2 machines (TFS and TFSBUILD). Periodically, the TFSBUILD server shares (\TFSBUILD\ShareName or \TFSBUILD\C$) become unresponsive to requests from Windows Vista (Server 2008) and Windows 7 client requests. Windows XP machines are still able to connect.
No events in the server log indicate any problem. A simple restart corrects the issue temporarily, but it always returns.
It is not this http://support.microsoft.com/kb/948732 (we aren't using that software).
This does not appear to be an issue with SMB 2.0. Per @Maxwell I tried disabling it on the server and on the Windows 7 and Vista stations:
sc config lanmanworkstation depend= bowser/mrxsmb10/nsi sc config mrxsmb20 start= disabled
All anti-virus software has been disabled, firewall is disabled by policy. No other network activity is affected.
The TFSBUILD server is a virtual, running under Hyper-V (x86 guest on an x64 host). The host has the same OS version and SP.
Any help would be greatly appreciated.