Cannot connect to SQL Server error: 26 | The server was not found or was not accessible.

Above the picture, You may also see this error in Microsft SQL Server. If this error will occurred, SQL Server will display the message like that.

TITLE: Connect to Server
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Cannot connect to Najathi\SQLExpress.

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ADDITIONAL INFORMATION:

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) (Microsoft SQL Server, Error: -1)


How to solve the error.
1. Search " SQL Server Configuration Manager "
2. then It will be displayed your server or instance, You Find out your server
3. select SQL Server and click "Start"



4. That's all.