Error message:
“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)”
How to solve this issue?
There are a couple of things that might be going on here… (All of the following configurations are made on the computer running your SQL Server 2008 instance)
Allow remote connections to this server
The first thing you want to check is if Remote Connections are enabled on your SQL Server database. In SQL Server 2008 you do this by opening SQL Server 2008 Management Studio, connect to the server go to Properties -> Connections -> Check “Allow remote connections to this server”.
for further issues check http://blogs.msdn.com/b/walzenbach
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