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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...SQL connectionSQL connection
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10/3/2012 6:00 AM
 
Richard Sletcher


Joined: 10/29/2008
Posts: 32

Hello,

I have a clients website running DNN 5.1.4. We recently moved the database to a new server. After the move, some modules stopped working, the site works and most modules work but for some modules I get a the error below in the Event Viewer

System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)at System.Data.SqlClient.SqlInternalConnection. (SqlException exception, Boolean breakConnection)at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)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 Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.DiscoverSpParameterSet(SqlConnection connection, String spName, Boolean includeReturnValueParameter, Object[] parameterValues)at Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.GetSpParameterSetInternal(SqlConnection connection, String spName, Boolean includeReturnValueParameter)at Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.GetSpParameterSet(String connectionString, String spName, Boolean includeReturnValueParameter)at Microsoft.ApplicationBlocks.Data.SqlHelperParameterCache.GetSpParameterSet(String connectionString, String spName)at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteReader(String connectionString, String spName, Object[] parameterValues)at DotNetNuke.Modules.FAQs.SqlDataProvider.SearchFAQList(Int32 ModuleId, Int32 OrderBy)at DotNetNuke.Modules.FAQs.FAQsController.SearchFAQList(Int32 ModuleId, Int32 OrderBy)at DotNetNuke.Modules.FAQs.FAQsController.GetSearchItems(ModuleInfo ModInfo)at DotNetNuke.Services.Search.ModuleIndexer.GetSearchIndexItems(Int32 PortalID)

Could nayone please give me an idea as to what may be causing this. I have made sure that all connection strings in the web.config are pointing to the correct place.

Regards

Richard
 
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10/3/2012 6:34 AM
Accepted Answer 
Wes Tatters


Wes Tatters's Avatar

Joined: 4/30/2004
Posts: 2155

It is most likely that the culprit modules are directly accessing the sql server using the older legacy SiteSqlServer key instead of going thru the new connectionstrings key values.

You need to check your web.config file and make sure that the  key="SiteSqlServer" key is set to correctly point to your new database in the AppSettings area - it should be identical to the value ot the name="SiteSqlServer" value in the connectionstring section.

Westa
 
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10/3/2012 6:39 AM
 
Richard Sletcher


Joined: 10/29/2008
Posts: 32
That did the trick. Much appreciated
 
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