Why cannot connect to local SQL server?
When I connect to my local server, I get this 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) (Microsoft SQL Server, Error: 2) This is my login information: Server type : Database Engine Server name : . Authentication: SQL Server Authentication Login: sa Password: *** SQL Server service is started and is in a running state. I'm connecting to a default instance. Why I cannot connect to local SQL server? How can I fix it?
The reason why cannot connect to local SQL server: There might be a connection error, 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. To resolve this issue, go to SQL Server Configuration Manager Start->all program->SQL Server 2008 R2->Configuration Tools->SQL Server Configuration Manager Explore "SQL Server Network Configuration" and then select "Protocols For MSSQLSERVER". Check your TCP/IP Protocols in right side pane. If it is disabled then enabled it and Restart the "Sql Server(MSSQLSERVER) service" that available in "SQL Server 2008 R2 services pane". You can follow the same steps to make sure for other protocols and services.