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.

Jan 22, 2008

My site works fine in VWD2008 express, but I get this error when I try to use it on my live website.

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. 

According to this article: http://support.microsoft.com/kb/914277  I am supposed to:





1.
Click Start, point to Programs, point to Microsoft SQL Server 2005, point to Configuration Tools, and then click SQL Server Surface Area Configuration.

Ok, there is no such program in this folder.  The only thing in there is "SQL Server Error and Usage Reporting"...

 The other thing I am greatly concerned with is this:  All is want is for my webpages to be able to access my database for user authentication.  I DO NOT want to grant the internet rights to remote connect to my database.

 

 

 

 

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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: SQL Network Interfa

Dec 10, 2007

I get the following error and have been trying to figure out why I keep getting it.  Initially, I had placed my project under wwwroot folder and ran it under IIS and it gave this error.  Then I moved it to my local C drive and same thing.  I am sharing this project with two other co-workers and all our config files and code files are same...they don't get this error but I do.  I checked that SQL Server Client Network Utility has TCP/IP and the 'Named Pipes' enabled.  I thought maybe I have setting in the Visual Studio 2005 that I'm not aware of that's causing this problem...it can't be the server since my co-workers aren't having this error and can't be anything in the code since all of us are sharing this project through vss.  I dont' think using different version of .net framework can create this error.  I changed the version from 2.0 to use 1.1x and it gave same error... Any help would be greatly appreciated.  Thanks in advance.
 
Server Error in '/RBOdev' Application.


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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +739123
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +685966
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +109
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +383
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) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +130
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.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197
System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.GetConnectionHolder() +16
System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.LoadPersonalizationBlobs(WebPartManager webPartManager, String path, String userName, Byte[]& sharedDataBlob, Byte[]& userDataBlob) +195
System.Web.UI.WebControls.WebParts.PersonalizationProvider.LoadPersonalizationState(WebPartManager webPartManager, Boolean ignoreCurrentUser) +95
System.Web.UI.WebControls.WebParts.WebPartPersonalization.Load() +105
System.Web.UI.WebControls.WebParts.WebPartManager.OnInit(EventArgs e) +497
System.Web.UI.Control.InitRecursive(Control namingContainer) +321
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +692



Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832

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oot021d50639a6858cApp_Code.54nvluyo.1.cs    Line: 102Stack 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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +435   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.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84   System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197   System.Web.Profile.SqlProfileProvider.GetPropertyValuesFromDatabase(String userName, SettingsPropertyValueCollection svc) +782   System.Web.Profile.SqlProfileProvider.GetPropertyValues(SettingsContext sc, SettingsPropertyCollection properties) +428   System.Configuration.SettingsBase.GetPropertiesFromProvider(SettingsProvider provider) +404   System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName) +117   System.Configuration.SettingsBase.get_Item(String propertyName) +89   System.Web.Profile.ProfileBase.GetInternal(String propertyName) +36   System.Web.Profile.ProfileBase.get_Item(String propertyName) +68   System.Web.Profile.ProfileBase.GetPropertyValue(String propertyName) +4   ProfileCommon.get_Address2() in c:windowsMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files
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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

Jan 22, 2008

When my default.aspx page loads I get this error for the connection to my SQL 2005 DB.    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
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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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When Connecting To SQL Server 2005, This Failure May Be Caused By The Fact That Under The Default Settings SQL Server Does Not A

Mar 2, 2008

My environment:

Home PC
Vista Ultimate
SQL Server Developer 2005


I'm about to go absolutely nuts. I've tried so many things including:

1) Of course making sure Remote connections and both TCP/IP and named pipes are enabled for SQL 2005
2) Verified my connection string works. I even tested it in Enterprise Library using the tool and it connects successfully via windows authentication
3) Made sure of course my logged in user is a member of the administrator group and that my user in SQL 2005 logins has db_owner and full rights to the DB I am connecting to. I also made sure the NT AUTHORITY as well as the 3 sql service users have db_owner rights as well as the adminstrator in the SQL Server logins all have db_owner to the DB
4) Started the SQL Server Browser service, SQL Server DB engine, and SQL Server Agent
5) Made sure my site is setup right in IIS 7. I checked the connection string in there as well as it shows up in IIS7 in one of the sections. Using Windows authentication and it is enabled for my site
6) Tried running the .net site using both localhost (IIS) and also tried using the Visual Studio built-in web server. Both give this message still


Error Details:

Server Error in '/' Application.






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) +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) +381
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
System.Web.SessionState.SqlStateConnection..ctor(SqlPartitionInfo sqlPartitionInfo) +79

[HttpException (0x80004005): Unable to connect to SQL Server session database.]
System.Web.SessionState.SqlSessionStateStore.ThrowSqlConnectionException(SqlConnection conn, Exception e) +227
System.Web.SessionState.SqlStateConnection..ctor(SqlPartitionInfo sqlPartitionInfo) +349
System.Web.SessionState.SqlSessionStateStore.GetConnection(String id, Boolean& usePooling) +285
System.Web.SessionState.SqlSessionStateStore.SetAndReleaseItemExclusive(HttpContext context, String id, SessionStateStoreData item, Object lockId, Boolean newItem) +178
System.Web.SessionState.SessionStateModule.OnReleaseState(Object source, EventArgs eventArgs) +476
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64




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

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An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this
I use Microsoft Windows Vista Home Professional
I have already installed to my computer Microsoft SQL Server 2005 and SQL Serves Express. I used to be successful to connect to the SQL Server but now I CAN NOT.

Not: I try to run SQL Server 2005 but I can not, even I logged on to my computer with an administrator rights. On the other hand I can start and stop the SQL Server Express easily.

As a result, how can I solve this problem.
Thanks in advance.
Bilgin Kılıç
Additional Details


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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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
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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I have already modified server name in connection string in web config file.
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Apr 16, 2008

 
Please help a teacher at wit's end. 
I have created a site using Microsoft Expression Web.  The site includes a create user page on which I placed the create user control (wizard), and a login page (which houses a login control) .  When the site sits on my local host all works well and I render the pages on my browser locally: the first time a user is created the aspnetdb.mdf file is automatically created into my app_data folder, the new user information is saved and can be accessed on the login page etc.  However,  when I upload to my hosting server. (godaddy) I can navigate to each of these pages seamlessly but when I try to use the controls on either page I get similar errors:
 
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
I am not a programmer, and am just beginning to learn asp.net.  However, I need to solve this problem.  GoDaddy cannot help me, they say, because this is inside of EW and that is a MS problem.  They have on the several ocassions I have contacted them, suggested compatibility issues (since they use SQL server 2003 and 2008 not 2005, or suggest that I need to script something to ensure that the .mdf file is recognized by their server, or that it was a database problem and that I may need a database programmer. They did tell me that it is important to note that the databases are hosted outside their server. I have not found anything in the EW side of this equation since most forums and support etc, deal more with the design part, than the online publishing part.  I have tried to find a programmer locally that could help me, and have yet to find one.  I am so close to being able to publish a site that meets our small school's needs, but cannot jump this one hurdle.  Can anyone tell me what I can do?
Any help will be appreciated.  
 

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Hi I have just reinstalled .Net  and SqlServer2005. I am running my application from local machine and sqlserver is also  install local machine. but when I run application. Get follwing Error Message  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:
SQL Network Interfaces, error: 26 - Error Locating Server/Instance
Specified) 

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Dec 19, 2007

hai friends.............
                    please give a solution to this 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) "
 
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Apr 7, 2008

Hi i get this error when i try to connect to my database through my web application "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 is the connection string in the web config file if it helps;<connectionStrings>
<add name="strConnectionString" connectionString="Data Source=itmrwks001;Initial Catalog=DHOC;Integrated Security=True; Trusted_Connection=Yes"providerName="System.Data.SqlClient" />
</connectionStrings>
Where am i going wrong, thank you.

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An Error Has Occurred While Establishing A Connection To The Server

May 8, 2008

Hello,
I'm having trouble getting my Sql connections working 100%. My pages usually connect ok, but sometimes for a reason I can't understand I get connection errors. I always use the connection string in web.config so there's only one connection string for the whole project.
I can be on one page, do nothing and just press F5, usually it works but sometimes it doesn't. It just throws this error. I've checked the surface area configuration and tcp/ip is of course allowed remotely. The weird thing is that it only happens sometimes, stops working for like 2-5 minutes and then starts working again. It might be some firewall related problem, but if so, what ports do Sql need to use tcp/ip connections? This might fix it but I don't think so, since it runs just fine on a Win2003 Server with the same firewall. On my local development machine (Vista) I get this problem.
Below is the complete error message:
"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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) "
Thanks beforehand for any and all replies!

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May 20, 2008

Hi, friends 
this is my error...:( 
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ı just wanna upload my web site and ı wanna see working, web.config file is my big problem ı didn't solve web.config file
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I could even get the website running. My web config file properly specifies the sql server and database. Here is the webconfig file line..
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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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

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Jan 22, 2008

The following exception is occured, when i try to connect the SQL server 2000 in remote machine.


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The Database server having the SQL SERVER 2000 & SQLSERVER 2005.

My connection string is (.Net 2.0 Web application)

"User Id=sa;Password=;Data Source=DBServerName,1433;Initial Catalog=DataBaseName;Network Library=DBMSSOCN;"

I have tried many ways but not working

1) Firewall Off
2) In connection string i have given the SQL instance name.
3) Change the (DB Server) machine name to IP.
4) I have give the TCP/IP port number followed by DBServerName (1433).
5) In SQL server 2005 - Changed the 'Surface Area Configuration' settings from Local Only to Remote

Still i'm getting the same exception.


Please suggest.,

Regards,
Nanda

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Server Error in '/ph' Application.
--------------------------------------------------------------------------------
 
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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.
 
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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
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(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance
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System.Data.SqlClient.SqlException: An error has occurred while establishing
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Line 19: Dim ConString As String = ("Data Source=C:Inetpubwwwrootmessage.mdb")Line 20: Dim myDataAdapter As New SqlDataAdapter(SQLStatement.Text, ConString)Line 21: myDataAdapter.Fill(myDataSet, "tblMessage")Line 22: myDataGrid.DataSource = myDataSet.Tables("tblMessage")Line 23: myDataGrid.DataBind()

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NB :i am connecting from the same pc where sq server is installed.

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Tarek

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 When I executed the code I have the following error message:
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Jun 7, 2007

I'm having a big problem with a SQL 2K5 cluster (using standard edition). I can get onto the box and connect to the sql server locally fine. However when I try to connect remotely I get errors.



Let's call the two sides of the cluster, CL1 and CL2 and the "virtual server" is CL3. Locally I can connect without any problem at all to the SQL server, but I just can't connect to it from any remote machine.

The server in question is instance name LMS_PRD running on CL3, port 10051. TCP/IP is definitely enabled for local and remote connections (I have checked this in the SQL server surface area configuration). I can connect locally without any problem. Also, locally, if I do,

telnet CL3 10051

it connects fine



From a SQL 2000 box - when I try to connect from sql query analyzer, I get

"Unable to connect to server LMS_PRD Server Msg 17 ... SQL server does not exist or access denied"

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[I can connect to other SQL 2005 servers OK from this same server using this same method]

On this box, when I do telnet CL3 10051 , I get "Connecting to CL3...Could not open a connection to host on port 10051 : Connect failed"

[When I do a similar one for another SQL 2005 box, "telnet U01 10051", it connects fine]



From another SQL 2005 box - when I try to register the server, I get

"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: TCP provider, error 0 - No connection could be made because thew target machine actively refused it.) (Microsoft SQL Server, Error: 10061)"



IN the SQL native client configuration it shows alias name - CL3LMS_PRD, server=CL3LMS_PRD, protocol tcp, parameters 10051



Again if I do telnet CL3 10051, I get the error above.



From this same box I can register another SQL 2005 server without any problem and do the telnet to it OK



Just to emphasise:

(a) The SQL server configuration manager shows that TCP/IP is enabled, and that 10051 is the port (in IPALL, TCP port). Also I have checked the SQL server errorlog - it is definitely using 10051 as the port.

(b) The SQL server surface area configuration shows under local and remote connections using both TCP/IP and named pipes selected (I've tried both this and the using tcp/ip only option)

(c) SQL server browser is running

(d) There are NO firewalls etc involved



Any help or advice MUCH appreciated

Any thoughts anyone?

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Jun 7, 2007

I'm having a big problem with a SQL 2K5 cluster (using standard edition). I can get onto the box and connect to the sql server locally fine. However when I try to connect remotely I get errors.



Let's call the two sides of the cluster, CL1 and CL2 and the "virtual server" is CL3. Locally I can connect without any problem at all to the SQL server, but I just can't connect to it from any remote machine.

The server in question is instance name LMS_PRD running on CL3, port 10051. TCP/IP is definitely enabled for local and remote connections (I have checked this in the SQL server surface area configuration). I can connect locally without any problem. Also, locally, if I do,

telnet CL3 10051

it connects fine



From a SQL 2000 box - when I try to connect from sql query analyzer, I get

"Unable to connect to server LMS_PRD Server Msg 17 ... SQL server does not exist or access denied"

Client network utility shows server alias - LMS_PRD, TCP/IP, CL3LMS_PRD,10051

[I can connect to other SQL 2005 servers OK from this same server using this same method]

On this box, when I do telnet CL3 10051 , I get "Connecting to CL3...Could not open a connection to host on port 10051 : Connect failed"

[When I do a similar one for another SQL 2005 box, "telnet U01 10051", it connects fine]



From another SQL 2005 box - when I try to register the server, I get

"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: TCP provider, error 0 - No connection could be made because thew target machine actively refused it.) (Microsoft SQL Server, Error: 10061)"



IN the SQL native client configuration it shows alias name - CL3LMS_PRD, server=CL3LMS_PRD, protocol tcp, parameters 10051



Again if I do telnet CL3 10051, I get the error above.



From this same box I can register another SQL 2005 server without any problem and do the telnet to it OK



Just to emphasise:

(a) The SQL server configuration manager shows that TCP/IP is enabled, and that 10051 is the port (in IPALL, TCP port). Also I have checked the SQL server errorlog - it is definitely using 10051 as the port.

(b) The SQL server surface area configuration shows under local and remote connections using both TCP/IP and named pipes selected (I've tried both this and using the tcp/ip only option)

(c) SQL server browser is running

(d) There are NO firewalls etc involved



Any help or advice MUCH appreciated

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Hi!!

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Dec 17, 2007

i cannot access my database as i am keep getting the following error:
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