I installed "windows server 2008 enterprise" on server and "sql server R2" and from a client that it has windows XP . I can remote to the server from Remote Desktop Connection.
And also MSSQLSERVER in server is "Started".
But I can not make a connection to "sql server 2008 R2" in client to server and the error is :
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) (.Net SqlClient Data Provider)
How I should do?