Unable to connect - Cannot generate SSPI Context

  • We recently went from mixed mode to trusted security.

    I am able to connect to the SQL servers without any problems within the office, but when I try to make a trusted connection from home using a vpn tunnel,  i get the following error :

    A connection to the server cannot be established

    Cannot generate SSPI Context

    Any ideas on why this could be happening and how it can be resolved ???

    TIA

  • Check this out.

    http://support.microsoft.com/?id=811889

  • This is a CLASSIC connection problem. I am going to give you three possiblities / workarounds

    1. When you use VPN, generally NT Authentication credentials are not passed to SQL Server by some VPN clients/routers. Check with your network guys if they can change router/client config to allow NT Credentials passed

    2. This error is common when using NT authentication with Tcp/IP as the default netlib across a VPN connection. Try using Named pipes as the default netlib 

    3. Switch to using SQL authentication when connecting from VPN

    HTH

     


    * Noel

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