I have some Vista Business workstations on a local domain with a 2008 Server. The workstations can connect to the server's shares and navigate through them (there are several). But when I attempt to copy a file to one of the local workstations, the copy starts but does not complete and I get a message:"Windows cannot access \\Server\ShareError code: 0x80070035The network path was not found."At that point, I lose network connectivity and have to restart to get it back.I tried switching "LmCompatibilityLevel" in \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa from 3 to 1 on the Vista workstations, but that had no effect.Also tried assigning drive letter to share, using IP instead of system name, and disabling firewall on client and server.The Windows XP workstations on the domain have no problem copying files from the shares. Even after disabling GPO on Server, when I attempt to use the GUI to turn on Network Discovery on a client, it continues to read "Custom".Your input is welcome.