Error 40: - Could Not Open A Connection To Sql Server

Apr 19, 2008

Hi
I am connecting to an external web server running sql 2005 absolutly fine when testing a site using my localhost on my laptop.  How ever, when i deploy the site to my server i get the error 40 code - the external database its trying to connect to is on a different server to both my own localhost and my own server.
here is my connection string from my web.config:
 
<add name="plightConnectionString" connectionString="Data Source=111.222.333.444;Initial Catalog=plight;Persist Security Info=True;User ID=xxxxxxx;Password=xxxxxxxx;" providerName="System.Data.SqlClient" />

 
I've googled the error but all answers require alterations to the server where the sql database is installed, and it works from my localhost anyway - is there anything i need to do to my own server which is running the website?
 
 Regards
 

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Error While Establishing A Connection To The SQL Server 2005 - Could Not Open A Connection To SQL Server

Apr 12, 2007

Hi, I had an old web application created during asp.net 1.1 and it have a connection problem with the sql server 2005 when it is mirgrated to a new webserver with dotnet framework 2.0 platform. I have enabled the remote access(TCP/IP and named pipes) in sql server 2005, did all the neccessary things, check whether the TCP/IP is enabled, named pipe is enabled...  I created another web application using VS 2005. The database connection works perfectly well.This are the connectionString from the old web application.<appSettings>    <add key="ConnectionString" value="Server=127.0.0.1;Database=somedb;User id=user; Password=somepassword; Trusted_Connection=False; POOLING=FALSE"/></appSettings>  Thankyou in advance! 

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Server Error While Trying To Open Connection

Feb 12, 2007

Hi,
I've created an "ASP.NET Web Application" project in Visual Studio and I want to simply open a connection to a database in SQL Server. All I have done is adding these 3 lines below without modifying any other generated codes by Visual Studio.(I've done this within code behind in Page_Load() not by <script> tag within HTML code)
public class WebForm1 : System.Web.UI.Page {   private void Page_Load(object sender, System.EventArgs e)  {   // Put user code to initialize the page here   SqlConnection c = new SqlConnection();   c.ConnectionString = "workstation id=BABAK;integrated security=SSPI;initial catalog=db1;persist security info=False";   c.Open();  }  ...   }
But I get this error :
Server Error in '/projects/fortest/tDB2' Application.--------------------------------------------------------------------------------
Login failed for user 'BABAKASPNET'.
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: Login failed for user 'BABAKASPNET'.
Source Error:
Line 24:    SqlConnection c = new SqlConnection();Line 25:    c.ConnectionString = "workstation id=BABAK;integrated security=SSPI;initial catalog=db1;persist security info=False";Line 26:    c.Open();Line 27:   }Line 28:  Source File: c:inetpubwwwrootprojectsfortest db2webform1.aspx.cs    Line: 26
What's wrong ?

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Error: 40 - Could Not Open A Connection To SQL Server

Jul 11, 2007

I posted this on the Dotnetnuke forums but no answer for it, so since it is a SQL error I guess maybe someone here might know. 
I installed the core forum that comes with the installation, the page runs great until I add the forum module.
I get this error:





A critical error has occurred.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)
The portal is in godaddy if this can help.
Thanks,
Erick

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Feb 7, 2008

hI I have a website which is on a web server owned by another companyI have webpages which should connect from the web server to sql server 2000 which is based at my companyhowever I am getting the error messageAn 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
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Help : Error: 40 - Could Not Open A Connection To SQL Server

Nov 24, 2005

I'm using VS2005 and SQL2000. I created a database name "myDatabase" in
SQL Server 2000 and built a website that connet to this database. When
I'm running this website in VS2005 IDE (press F5 or Ctrl-F5),
everything is OK. I publiced this site. When I connect to database on
my computer, everything is OK also, but when I connect to database on
another computer, an error occurred 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 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)"

Now, I don't know how to fix it. Pls help me as soon as possible.
Regards.

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Error: 40 - Could Not Open A Connection To SQL Server

Feb 22, 2006

I have created a new aspx site on ‘server 1’ which connects to an sql server 200 on ‘server 2’ ‘Server 1’ is a test server and all works fine.  I then move the site onto ‘server 3’ and receive the error below.
 
This must be a problem with ‘server 3’.  I have installed .net version 2 on this server and there are currently no aspx sites running of this server.  There must be smothering not configured right.  There are other sites on the server that are talking to the SQL server.
 
Any help would be great.
Thanks
 
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:




An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
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) +735059   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188   System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) +820   System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628   System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170   System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +359   System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28   System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424   System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105   System.Data.SqlClient.SqlConnection.Open() +111   System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +121   System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +137   System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +83   System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +1770   System.Web.UI.WebControls.Repeater.GetData() +50   System.Web.UI.WebControls.Repeater.CreateControlHierarchy(Boolean useDataSource) +232   System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e) +53   System.Web.UI.WebControls.Repeater.DataBind() +72   System.Web.UI.WebControls.Repeater.EnsureDataBound() +55   System.Web.UI.WebControls.Repeater.OnPreRender(EventArgs e) +12   System.Web.UI.Control.PreRenderRecursiveInternal() +77   System.Web.UI.Control.PreRenderRecursiveInternal() +161   System.Web.UI.Control.PreRenderRecursiveInternal() +161   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1360
 

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Oct 15, 2007

Hi..


i m using sql server 2005 express edition and sql server 2005 management studio for express edition.when i m trying to establish connection from visual studio i m getting an error
"An error has occured 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 pipe provider,error :40-could not open a connection to sql Server)"

please help me out....
its really urgunt..


thanks,

Chetan S. Raut.

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Error 40-could Not Open Connection To Sql Server

Oct 14, 2007



Hi..


i m using sql server 2005 express edition and sql server 2005 management studio for express edition.when i m trying to establish connection from visual studio i m getting an error
"An error has occured 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 pipe provider,error :40-could not open a connection to sql Server)"

please help me out....
its really urgunt..


thanks,

Chetan S. Raut.

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Apr 23, 2008

 
Hi Friends,
Im using .Net2008 and MS SQL Server2005, I Have a web application , i want to connect to the server machine SQL Server,  When i run the application im getting the following error.
Im trying to connect to the database from local machine application to server machine database
  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)
My WebConfig File is<connectionStrings>
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Please Help me to sortout this ISSUe, Its very urgent please 
 
 

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Mar 22, 2007

Hi,I'm using  sql server 2005 express edition. I have created a database using sql server management studio express edition. Now I'm trying to connect it in visual studio 2005. It show following error. An error has occurred while establishing a connection to the server. When connections to SQL 5erver 2005, this failure may be caused by the fact  under the server's default settings SQL Server does not allow remote connections, (provider: Named Pipes Provider, error: 40- Could not open a connection to SQL Server)   I have enables named pipes from Sql services configuration manager.

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Feb 25, 2006

Hey,

After install Visual Studio 2005 (with SQL sever express) on recent Vista build, trying to connect to a local sse database file from Data Source Window (accessible from Data/Show data source window) gives this error:

---------------------------
Microsoft Visual Studio
---------------------------
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)
---------------------------
OK

No issues if we install Visual Studio 2005 on WinXP or W2k3.

Is there any configuration we need to set on vista to allow sql connection?

Thanks,

Mei



---------------------------

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May 31, 2007

Hi,



I am running XP Professional SP2. I have tried to install both SQL 2005 Developer (on this machine) and SQL 2005 Enterprise (on my other laptop), seemingly with success, but get the following error message when I try to connect to the local host using SSMS:





TITLE: Connect to Server
------------------------------

Cannot connect to .

------------------------------
ADDITIONAL INFORMATION:

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)





There is obviously something I'm doing fundamentally wrong in the install process - I'd be grateful for any help you guys can offer!



Laura

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Jun 9, 2008

I get this error when I try and log into my SQL Server 2005 database:
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Named Pipes Provider, Error: 40 - Could Not Open A Connection To SQL Server

Dec 5, 2007

Hello All!

I'm getting the following error message below from SQL server error log, see below.

And the following error on the web browers:
"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) "

I have see this link (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=192622&SiteID=1) and other links and done the changes they recommend, but it does not give any positive results.
I have also in the firewall added named pipes internal and external port 445.
I have also in RUN executed "cliconfg.exe" and enable the tcp ip port number 1433 and named pipes "sqlquery".
In the sql server configuration manager, have I enabled both tcp/ip and named pipes. The same in the server surface area configuration. I have also enabled remote access.

Still having the same problem??!!??
Iam out of ideas ...

Please need help, thanks in forehand!
Nikita

SQL SERVER LOG file:
2007-12-05 11:31:11.12 Server Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86)
Feb 9 2007 22:47:07
Copyright (c) 1988-2005 Microsoft Corporation
Express Edition on Windows NT 5.1 (Build 2600: Service Pack 2)

2007-12-05 11:31:11.12 Server Error: 17054, Severity: 16, State: 1.
2007-12-05 11:31:11.12 Server The current event was not reported to the Windows Events log. Operating system error = 1502(error not found). You may need to clear the Windows Events log if it is full.
2007-12-05 11:31:11.12 Server (c) 2005 Microsoft Corporation.
2007-12-05 11:31:11.12 Server All rights reserved.
2007-12-05 11:31:11.12 Server Server process ID is 1744.
2007-12-05 11:31:11.12 Server Authentication mode is MIXED.
2007-12-05 11:31:11.12 Server Logging SQL Server messages in file 'C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG'.
2007-12-05 11:31:11.12 Server This instance of SQL Server last reported using a process ID of 4884 at 5.12.2007 11:30:09 (local) 5.12.2007 9:30:09 (UTC). This is an informational message only; no user action is required.
2007-12-05 11:31:11.12 Server Registry startup parameters:
2007-12-05 11:31:11.12 Server -d C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmaster.mdf
2007-12-05 11:31:11.12 Server -e C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLLOGERRORLOG
2007-12-05 11:31:11.12 Server -l C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDATAmastlog.ldf
2007-12-05 11:31:11.20 Server SQL Server is starting at normal priority base (=7). This is an informational message only. No user action is required.
2007-12-05 11:31:11.20 Server Detected 2 CPUs. This is an informational message; no user action is required.
2007-12-05 11:31:11.67 Server Using dynamic lock allocation. Initial allocation of 2500 Lock blocks and 5000 Lock Owner blocks per node. This is an informational message only. No user action is required.
2007-12-05 11:31:11.75 Server Database mirroring has been enabled on this instance of SQL Server.
2007-12-05 11:31:11.75 spid4s Starting up database 'master'.
2007-12-05 11:31:11.93 spid4s Recovery is writing a checkpoint in database 'master' (1). This is an informational message only. No user action is required.
2007-12-05 11:31:12.11 spid4s SQL Trace ID 1 was started by login "sa".
2007-12-05 11:31:12.20 spid4s Starting up database 'mssqlsystemresource'.
2007-12-05 11:31:12.23 spid4s The resource database build version is 9.00.3042. This is an informational message only. No user action is required.
2007-12-05 11:31:12.49 spid8s Starting up database 'model'.
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2007-12-05 11:31:12.65 spid8s Clearing tempdb database.
2007-12-05 11:31:13.03 Server A self-generated certificate was successfully loaded for encryption.
2007-12-05 11:31:13.03 Server Server is listening on [ 'any' <ipv4> 1175].
2007-12-05 11:31:13.03 Server Server named pipe provider is ready to accept connection on [ \.pipeMSSQL$SQLEXPRESSsqlquery ].
2007-12-05 11:31:13.03 Server Dedicated administrator connection support was not started because it is not available on this edition of SQL Server. This is an informational message only. No user action is required.
2007-12-05 11:31:13.07 Server SQL Server is now ready for client connections. This is an informational message; no user action is required.
2007-12-05 11:31:13.32 spid8s Starting up database 'tempdb'.
2007-12-05 11:31:13.42 spid4s Recovery is complete. This is an informational message only. No user action is required.
2007-12-05 11:31:13.42 spid11s The Service Broker protocol transport is disabled or not configured.
2007-12-05 11:31:13.42 spid11s The Database Mirroring protocol transport is disabled or not configured.
2007-12-05 11:31:13.46 spid11s Service Broker manager has started.

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Jan 6, 2006

This was originally posted in the SSIS Forum, but a member of the IS team suggested it be moved here.  "Most recently I got this error (Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) so does this mean that SQL Server is still trying to use named pipes even if I only have TCP/IP enabled in SQL Server Configuration Manager?"

I'm having the same issue, and here's our scenario:

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Lost my last hair

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Dec 5, 2007

My configuration is: Vista Home Premium, SQL Server Express and I'm trying to access a database on an instance named AxisSQLServer in a C# application.

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SQL Server is started.
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My connection string reads:
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HiI'm a complete sql/asp.net newbie and want to try this tutorial:http://beta.asp.net/GuidedTour/First I installed:Visual Web Developer 2005 Express Edition Beta 2systemsettingssoftware shows the "sql server 2005 express edition ctp (sqlexpress)" installedmmcservice shows me the SQL Server (SQLExpress) is runningFollowing the guided tour I use the commandline, type cmd, and type in the commandbox: "C:Program FilesMicrosoft SQL Server90ToolsinnSQLCMD90" -S "localhostSqlExpress"Instead of localhost I also tried computername.smallbusiness.local (thats my fully domain name). However I always receive the error:
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Mar 1, 2007

Hi,

I am trying to connect to my SQL Server 2005 but it gave me following error message.




TITLE: Connect to Server
------------------------------

------------------------------
ADDITIONAL INFORMATION:

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: 53)



So, Please help me to solve this problem.



tnks.

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Mar 5, 2007

Facts:1. I am using my account on Godaddy trying to connect to my sql server db.2. I can get into my db using user id and password.3. Godaddy's help file shows this for a connection string: connectstr = "Driver={SQL Server};SERVER=" & db_server & ";DATABASE="
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Hi,

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Actually , I am having issues with Named pipes connection from publisher to subcriber. I have enabled the protocols and also enabled the remote connections using both tcp/ip and named pipes. I have created the client network alias using named pipes

Also, due to security reasons only few ports have been released on the subscriber. Please provide me some information on the following.
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Jan 28, 2008

Hi I always get good reply from u all, thank you,
 I have copied my asp.net website from one server to another. they administrator made necessary modification on IIS manager . and able to see the website on browser. but now i can't loging to system using old password.
I tryed to create new password then also it gives error
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Here I have used asp.net login control and membership class. Do I need to make nay changes in code.
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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)

Apr 18, 2008

Hi ,
      I am struck with one issue.Plz help me out if you have any solution for this one.
Details
Front End - Visual Studio 2005
Back End -SQL Server 2000 (Remote database) 
Error i am getting is
{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)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)   at System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup)   at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)   at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)   at System.Data.SqlClient.SqlConnection.Open()   at dbcAccess.clsSQL.GetConnect() in C:Documents and SettingskerlsgMy DocumentsVisual Studio 2005ProjectsdbcAccessdbcAccessclsSQL.cs:line 296} 
 
 
 
   
 
{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)

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SQL 2005 : Provider: Named Pipes Provider, Error: 40 - Could Not Open A Connection To SQL Server

Mar 17, 2008

Hi to all,


We have 4 client machine and 1 server machine, that server have all the sql server 2005 database€™s.


A project developed from client1 with Asp.net 2005 now I need to access that project from client2 so I type http://My Ip address/Folder Name/home.aspx in my browser here when the sql connection is open(SqlConnection.Opn()) then I meet this problem


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)


Please reply me.

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Error: 40 - Could Not Open A Connection

May 8, 2007

I am developing a web service that uses a sql data connection.



The sql database is on a server, and the development version of my web service is on my pc.



I can connect/access the data accross my network when I run the service on my PC, but as soon as I put the web service onto the server(with the sql) it displays, the service wont function - error: 40 - could not open a connection....



I presume that sql is configured correctly as I am recieving data back when I request it accross the network. I dont understand why it wont work when I have the service on the server with the sql?



Any help will be appreciated.



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(provider: Named Pipes Provider,error: 40 - Could Not Open A Connection To SQL Server)

Jan 23, 2007

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.
 I am getting this error and using this connection string
Data Source=192.168.0.100;Network Library=DBMSSOCN;Initial Catalog=ENet;User ID=eonline;Password=eonline;
What can be solution for this.

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Provider: Named Pipes Provider, Error: 40 - Could Not Open A Connection To SQL Server

Mar 10, 2008

Hi,    I am working on VS 2005 and using SQL 2005 Express and i am processing excel files and inserting records in data base as i processing starts and almost after processing 600 i got this error provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server. how can i solve that thanx  

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Provider: Named Pipes Provider, Error: 40 - Could Not Open A Connection To SQL Server

Apr 26, 2007



We just changed the dev environment to sqlagent. From then we were unable to see the reports on the report server because:



An error has occurred during report processing.

Cannot create a connection to data source 'IHRSDataSource'.

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)

this error is cropping up.



To Resolve this issue, we checked the Surface Area Configuration and also checked the Reporting Service Configuration . There seem to be no problem and everything looks ok.



Please help me in resolving this issue.











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Provider: Named Pipe Provider, Error: 40 - Could Not Open Connection To SQL Server

Apr 14, 2007

After I installed the various service packs via Windows Update, my WindowsForms application can no longer connect to the server.



The error message is:



provider: Named Pipe Provider, error: 40 - Could not open connection to SQL server.



However, the Reporting Services work just fine.



Please help.

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Provider: Named Pipes Provider, Error: 40 - Could Not Open A Connection To SQL Server

Mar 17, 2008

Hi to all,


We have 4 client machine and 1 server machine, that server have all the sql server 2005 database€™s.


A project developed from client1 with Asp.net 2005 now I need to access that project from client2 so I type http://My Ip address/Folder Name/home.aspx in my browser here when the sql connection is open(SqlConnection.Opn()) then I meet this problem


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)




Please reply me.

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Provider: Named Pipes Provider, Error: 40 - Could Not Open A Connection To SQL Server

Feb 20, 2006

Hi All,

   I am new to dotnet. I tried connecting to the database MS SQL Server 2000. I gave the code like, the one below, in form load event,

SqlDataReader dr = null;

SqlConnection myConnection = new SqlConnection("Data Source=IP;Initial Catalog=name;User Id=uid;Password=pwd;");

myConnection.Open();

myConnection.Close();

But I could not connect. The error message highlights the line myConnection.Open() and displays the error

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)


It tries connecting to SQL Server 2005. There is no SQL Server 2005 in that system. There is only SQL Server 2000.

I have the aspx code in my local system and the database in another machine.

Could Someone please help me out in solving this problem.

 

Thanks,

Arun. S

 

 

 

 

 

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Provider: Named Pipes Provider, Error: 40 - Could Not Open A Connection To SQL Server

May 20, 2008



hi all

I realised this has been done to death, and so much information out there but I am still in a quandry.

I have had to rebuild my computer.

This is what I did

XP machine
using SQL Server 2005 Standard Edition
using Windows Authentication
NZ6(MSSQLSERVER)

straight default install all the way

unfortunately when ready to run reports from my instance(computer)
I received the error as in provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server

thought I had it all okayed but obviously something not right

so ended up unistalling then - did the following:

Load SQL Server from disc1 and start install
failed on alter Counter Registry key error
fixed this from KB article (known error that can happen)
restarted
Went to Windows Update
check IIS is installed - tick is on - IIS - admin tools - make sure asp2 is associated - yes ok
Then back to install sql server - there is no instance set up yet
Disk 2 and setup .exe

All ok on Reporting Services, Analysis etc.


But once again all seems fine but still getting the error:

connection is all fine in Management Studio - eg I can see tables etc
connection is all fine in Business Intelligence - eg I can preview my reports
I then can deploy up to - NZ6
open NZ6
eports
report is there fine - but just errors

some simple little tick that I have not done!!

I seem to have checked and rechecked everything and obviously doing another re-install does not seem a logical step from here.
I will continue to check but if someone jump in and advise please would be great.

cheers
jewel

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