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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
I am a currently working SQL Server database admin with hands on experience on troubleshooting connectivity issues and administering large scale databases. I have configured servers for infrastructure for almost 10 fortune 500 companies.