Comments on: Error Has Occurred While Establishing A Connection To SQL Server 2005 Which Does Not Allow Local and Remote Connections

By: Mayiko

Mayiko — Tue, 11 Aug 2009 06:07:09 +0000

Thanks pall, this document helped me out several times now.

By: Meenukutty

Meenukutty — Fri, 17 Jul 2009 12:44:58 +0000

I got the reasons for the following error. This error is comming because you have to enable remote connection for sql server

Sqlcmd: Error: Microsoft SQL Native Client: 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.

Regards

By: Tamnc

Tamnc — Thu, 09 Jul 2009 02:51:49 +0000

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)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: 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)

Source Error:

Line 22: MyStr = “Server=localhost;Persist Security Info=False; Integrated Security=SSPI;database=MyDatabase;”
Line 23: Connect = New SqlConnection(MyStr)
Line 24: Connect.Open()
Line 25: Dim StrQry = “Select ProductType From ProductTyes”
Line 26: Command = New SqlCommand(StrQry, Connect)

Source File: C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\WebSites\ASP.NETProject\Index.master.vb Line: 24

Stack Trace:

[SqlException (0x80131904): 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)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +800131
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +186
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +737554
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +114
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +421
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +173
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +357
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +30
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +494
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
Index.Page_Load(Object sender, EventArgs e) in C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\WebSites\ASP.NETProject\Index.master.vb:24
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Control.LoadRecursive() +131
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436

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Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433

Please help me. I’ve tried to follow step by step the direction above, but it is also get this problem. Would you please solve it successfully? Thank you so much.

By: almny

almny — Fri, 15 May 2009 20:11:49 +0000

i get the same problem with godaddy.com hosting
dn you know how i solved it on godaddy ?

By: param

param — Wed, 25 Mar 2009 13:02:25 +0000

I am trying to connect a sql server 2005 instance installed on XP SP2 from a sql server 2005 express edition on vista.
I’v done all the changes on both the machines, but my vista machine still does not connect with the sql instance on XP.
what could be the issue here ?

By: Chintan

Chintan — Fri, 20 Mar 2009 09:21:46 +0000

Thanks for your help…

It solved my problem..

It was really very useful

By: karthik

karthik — Wed, 11 Mar 2009 07:51:30 +0000

Thanks. It solved my problem.

Great article

By: Luis

Luis — Wed, 04 Mar 2009 13:25:56 +0000

men tengo un problema! yo uso el mumaker! y cuando establesco una conex remota! para el sql q lo tengo en el servidor en otra pc me sale ese mismo error! en esta pc donde tengo el maker no tengo ningun sql instalado solo los net.framework del 2.0 al 3.5 y aun asi me sale el error del sql 2005 cuando no lo tengo aqui e incluso en la pc donde tengo el server uso el sql 2003! no entiendo la vdd? crees q sea mi so? xq en esta pc tengo un skin el illuusion v2 y enla otra donde tengo el server el xp s2! espero tu pronta y grata respuesta

By: kkbook

kkbook — Tue, 03 Mar 2009 04:34:01 +0000

ขอบคุณมากจ้าาา (Thailand)

By: Eralper

Eralper — Tue, 24 Feb 2009 20:54:51 +0000

Thanks for the detailed explanation and step by step guide for connection problem

By: SQL-developer

SQL-developer — Tue, 24 Feb 2009 20:52:48 +0000

Thanks for detailes explanation on this very common and frequently faced problem by sql developers.

By: Mario

Mario — Fri, 13 Feb 2009 16:32:52 +0000

Thank you very much… Very useful solution.

By: Kumar Senthil

Kumar Senthil — Mon, 09 Feb 2009 20:13:38 +0000

simply superb! Thanks a lot.

By: Anna

Anna — Mon, 02 Feb 2009 03:54:40 +0000

GREAAATT succESS!

By: Victor

Victor — Wed, 03 Dec 2008 12:14:18 +0000

I restarted the service from services menu, for some reason that did not work. Your solution worked perfectly. Thanks.

By: Ibrahim

Ibrahim — Wed, 19 Nov 2008 16:57:33 +0000

for some reason this solution is working for me.