Specified Network Name No Longer Available


  • Unable to reach DFS namespace from Server 2003 Ent. w/SP2 Error Message: The specified network name no longer available. 


    I receive the above-mentioned message when trying to navigate to \\Domain.local\MynameSpace or when trying to navigate to one of the two namespace servers the DFS namespace environment is made up for. When I try to navigate from Windows explorer to \\NameSpaceServ1\ I get the above message. If I try to navigate to \\NameSpaceServ2\ the network shares show up just fine. The problem only happens on Server 2003. Server 2008R2 or server 2012R2 work just fine. I can ping both file servers using their IP or hostname from the 2003 terminal server in question. I can also successfully perform NSLookup on both file servers. uninstalling AV client from \\NameSpaceServ1 didn't resolve the problem.

    Update: When I run net use or net view \\NameSpaceServ1 from command prompt on 2003TS1 server I get system error 64 network name no longer available. Only for NameSpaceServ1! it does look like a dns issue.

    Following changes were made a couple of days ago:

    Removed last 2003 DC and replaced it with 2012 R2

    Raised domain and forest functional levels to 2008 R2

    My Environment:

    DFS Namespace:

    \\Domain.local\MynameSpace = DFS 2000 mode

    \\NameSpaceServ1 = Server 2012 R2

    \\NameSpaceServ2 = Server 2012 R2

    Terminal Servers:

    \\2003TS1 = has the problem

    \\2003TS2 = has the problem

    \\2008TS1 = No problem

    \\2012TS1 = No problem

    • Edited by k0204350 Saturday, January 2, 2016 2:35 PM
    Saturday, January 2, 2016 6:10 AM

All replies