Error al tratar de conectarme al motor

Hola


Pueden ayudarme desde ayer no he podido conectarme al motor, a pesar
de que todos los dias lo hago ya no es posible y no se que revisar.

Gracias.

TTULO: Conectar al servidor


No se puede conectar a dbvdo02.


INFORMACIN ADICIONAL:

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)

Para obtener ayuda, haga clic en:
http://go.microsoft.com/fwlink?Prod...amp;LinkId 476

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