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Error - 'The server was not found or was not accessible verify that the instance name is correct error 26'

Full error message when trying to connect to FactoryMaster database using sa credentials (see below): Environments: FactoryMaster, SQL server

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Written by Jes Foxall-Beckley
Updated over 2 weeks ago

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)

Solution:

Please run the ClientSetup on the server. If that doesn't resolve it, please contact your IT department. This is a local environment issue where the named instance of the FactoryMaster database is not being detected. For example, your Wi-Fi network breaks and you are now using VPN, where the IP address of the server cannot become the named instance.

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