not able to connet named instance from client side

  • Hi

    I have installed 2 different SQLServer instance on a single box. One is SQL2008 Std Edition (Default Instance) and the another one is SQL2008 Ent Edition (server\instance)

    My problem is when am trying to connect named instance from client side it's giving error server does'nt exist. But am able to connect Default instance. even i tried by adding alias name but still not able to connect

    kindly help me out from this problem.

    Regard,

    Vinod K

  • You have to check whether SQLBrowser service is running and reachable from the client.

    SQLBrowser uses UDP port 1434 IIRC, so you just have to check your firewall rules and include traffic from/to that port.

    The default instance does not need SQLBrowser if it is set up to wait on the default port (1433), because clients already know where to attach.

    Hope this helps

    Gianluca

    -- Gianluca Sartori

  • You can also check PortQuery from Microsoft and see if your SQLBrowser is reachable:

    portqry.exe -n yourServerNameGoesHere -e 1434 -p UDP

    -- Gianluca Sartori

  • yourserver\instancename,port

    check the second instance port

    Default port is 1433 for default instance and 1434 is for browser service default service,change the second instance port restart the service and then try to connect

    Regards,
    Syed Jahanzaib Bin Hassan
    BSCS | MCTS | MCITP | OCA | OCP | OCE | SCJP | IBMCDBA

    My Blog
    www.aureus-salah.com

  • Syed Jahanzaib Bin hassan (5/17/2011)


    yourserver\instancename,port

    check the second instance port

    Default port is 1433 for default instance and 1434 is for browser service default service,change the second instance port restart the service and then try to connect

    Could also work with yourserver,port.

    However, this solves the problem just for the application(s) for which you change the connection string explicitly. If you solve it at firewall level, you do it just once.

    -- Gianluca Sartori

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