The following is the error message and stack trace that appears when I install Sueetie on a windows 2008 R2 server. My test environment and production environment are identical accept for the difference in Operating system; my test environment is running Windows 8. All credentials, database names, and other permissions are the same:

Server Error in '/forum' Application.

---

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)
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: 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)

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): 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)]
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +706
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +89
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +6415550
System.Data.SqlClient.SqlConnection.Open() +300
YAF.install.SueetieInstall.ExecuteSqlInStream(Stream stream) +978
YAF.install.SueetieInstall.ExecuteSqlInFile(String pathToSqlFile) +93
YAF.install.SueetieInstall.btnInstall_OnClick(Object sender, EventArgs e) +173
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +154
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3707

---

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
Any information on this would be great; this is like the forth time this has happened, and the forth content management system that has had this problem. I can connect just find to the database created for the web site using the credentials I gave in the web connections.config. I would rather not reinstall SQL server Express 2012 if I can avoid it; I already reinstalled it about a month and a half ago, but it can't be a corrupt installation since things worked before. Thanks for anything you can provide.

The bad news: This one is not Sueetie-specific, so there aren't answers to this one that you would *only* find in this community.

The good news: You really don't need the stack to work this one. The error summary says it all, clearer than anyone in this community could state it. A network-related or instance-specific error occurred while establishing a connection to SQL Server. Either a typ-o in your connections.config, or there is an issue with the configuration of your SQL server.