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Cannot connect to GUARDIAN-PC\SQLEXPRESS.

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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)

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closed as unclear what you're asking by Jack Douglas Jan 19 at 14:08

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.

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See my answer here: dba.stackexchange.com/a/49421/2718 –  Jon Seigel Jan 19 at 15:58

1 Answer 1

Check if SQL Server browser service is running.

Also enable network protocol TCP set it to default.

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