Incerc sa creez o legatura din C# la Sql Server si imi da aceasta eroare:

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)

Am intrat in SQL Server Surface Area Configuration si la Remote Connections este setat Local and remote connection si Using both TCP/IP and named pipes.
Ce altceva as mai putea sa fac?