connection - Unable to connect to SQL Server Error: 26 - Error Locating server/ Instance Specified - Stack Overflow
Cannot connect to SQL Server 2012 Denali
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
SQL Server Error 26 Error Locating Server/Instance specified – Sansknowledge's Blog
Error 26: Error locating server/Instance specified SQL Server - YouTube
Fix: A Network-Related Instance Specific Error Occurred – Error 26 Microsoft SQL Server
When trying to manually start the SQL Server (NUCLEUS) receive an error 1814.