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MSSQLSERVER_11001

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance

Details

Attribute Value
Product Name SQL Server
Event ID 11001
Event Source MSSQLSERVER
Component SQLEngine
Symbolic Name
Message Text An error has occurred while establishing a connection to the server. When connecting to SQL Server, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: TCP Provider, error: 0 - No such host is known.) (.Net SqlClient Data Provider)

Explanation

The SQL Server client cannot connect to the server. The error could occur because either the client cannot resolve the name of the server or the name of the server is incorrect.

User Action

Make sure that you have entered the correct server name on the client, and that you can resolve the name of the server from the client. To check TCP/IP name resolution, you can use the ping command in the Windows operating system.

See Also

Network Protocols and Network Libraries
Client Network Configuration
Configure Client Protocols
Enable or Disable a Server Network Protocol