SQL Express remote connections

SQL Express remote connections

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Networking protocols are disabled by default in SQL Server Express. The error message you will get when trying to connect from SQL Native Client will look like this


“An error has occurred while establishing a connection to the server when connecting to SQL server 2005, this failure may be caused by the fact that under default settings SQL server does not allow remote connection. ( provider: Named Pipes Provider, error: 40 - could not open a connection to SQL server. )”


The solution to this is to enable remove connectivity on SQL Express; see the following link for info on how to do this.



Brad Sarsfield

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  • How could I connect to a database in Sqlexpress  using ODBC .Some guy, could you give me a connection string ?

  • This web page has a list of many different variations of valid connection strings, depending on what you want to do. Remember, "don't miss the server name syntax Servername\SQLEXPRESS where you substitute Servername with the name of the computer where the SQL Server 2005 Express installation resides."


  • I have a problem in back up.

    Error message 18456

  • am developing the vb.net client/server application

    this is my connection string

    Public con As New System.Data.SqlClient.SqlConnection("Integrated Security=SSPI;Initial Catalog=TestData;Data Source=(local)")

    this connection working in local, my problem is when i try to connect my server remotely like Public con As New System.Data.SqlClient.SqlConnection("Integrated Security=SSPI;Initial Catalog=TestData;Data Source=(") its can't support

    anyone help me please how to connect remote server

  • Although you need () for (local), you don't need it for IP address. i.e. you should use -- Data Source= If you still see problem, Please post a question on our forum and provide more details about how it fails. http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=87&SiteID=1



  • how i can Enable Sql server 2005 remote connection in vb.net(By Code)

  • Hi Mohamed,

     SMO provides a .NET interface to many SQL management functions, including the ability to enable remote connections.  I don't have a code sample on hand, but here is the Books Online link for SMO, where you can read more: http://msdn.microsoft.com/en-us/library/ms162169.aspx

    Hope this helps!

  • Thanks for this tips !! Very usefull !!

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  • Hello,

    I have microsoft sql express installed on one computer running on windows authentication.

    I am trying to access the tables in one of the databases on it from another computer.

    When i enter the server ip and use windows authentication, it logs in successfully. and i am able to view the databases on the other pc. however i am only able to view system tables. and not the ones i want (which are user tables).

    can anyone help? I would be grateful. i have been stuck on this for days and i've searched every possible site on the internet. thanks in advance!

    Configuration: Windows XP Internet Explorer 7.0

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  • Hi,

    I'm using mssql 2008 and trying to mirror a database from a server to another but when i tried to connect to my mirror server instance, error 26 always occur.

  • I have following error in LAN setting in sql 2005


    Cannot connect to COM.



    An error has occurred while establishing a connection to the server.  When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)

    For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476





  • hi

    i want to upload my site in a blog

    so how to i connect with the database

    when i m uploading then this is giving an error

    this is tha page in which error is

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