My Sql server 2012 has stopped working and now its not letting me login. Here is the error:


TITLE: Connect to Server

Cannot connect to

------------------------------ 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: 53)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=53&LinkId=20476

The network path was not found

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please suggest what should I do

  • I have edited the question. Please have a look Aug 21, 2015 at 16:58
  • It not clear what your question is. The current error doesn't indicate an inability to log into the server, the server on the other hand, cannot even be communicated with.
    – Ramhound
    Aug 21, 2015 at 17:05
  • I have configured a Loop back adapter in order to connect my local database with an IP with user name sa its not working now Aug 21, 2015 at 17:08
  • The error is specific. There is nothing at that address that is even responding. No attempts to access the server is being remade. Verify all configuration to determine the cause of this behavior.
    – Ramhound
    Aug 21, 2015 at 17:10
  • If you changed the computer name, then you won't be able to connect. You have to uninstall and install again. Oct 26, 2015 at 10:17

3 Answers 3


Was facing the same issue. Realized that Windows 10 had turned off the SQL Server Service.

To resolve, open 'services.msc' and start service of SQL Server ()


Same error here but the connection problem happens only when using the computer name AND only from the server itself (clients can connect)

If instead of using "[servername]\[instancename]" you try to connect with "[serverip]\[instancename]" it works. That is the only workaround I found so far. A word from microsoft would be very appreciated.

moreover... it seems like the problem doesn't affect OSQL.


probably because the service can not run Windows 10 memory compressor. It also happened to me. Windows 10 version 10525.

  • What is the SQL Server version? Is there any workaround?
    – Martheen
    Aug 31, 2015 at 7:58

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