SQL Connection error - Named Pipes

[steveelder]

Hi all

first time poster , so be easy on me

When trying to connect to SQL Server ( all 2008 r2 ) i get the following error messages

This is only a problem on my production servers,,, test servers are fine. ...

Details: "Microsoft SQL: 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)"

So

Im running  Power BI as an admin

have the correct username/password

Have checked the SQL server is running and all services are good

Have checked to allow ports through on the servers firewall

Have checked to allow incoming connections in SQL

TCP/IP and Named are enabled on config manager

anything else ?