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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.
21 wrz 2023 · The following articles provide details for various tools and procedures to troubleshoot different connectivity errors: Configure firewalls to work with SQL Server. Describes how to configure Windows firewall for successful connections to instances. Test connections to SQL Server by using Universal Data Link (UDL) files
3 lis 2017 · 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) To troubleshoot this I have gone to extremes:
20 cze 2023 · To effectively troubleshoot connectivity issues, gather the following information: The text of the error message and the error codes. Check whether the error is intermittent (occurs only sometimes) or consistent (occurs all the time). Application and system event logs from SQL Server and client systems.
21 mar 2011 · Problem. Sometimes you may have issues connecting to SQL Server and you may get messages such as the following: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible.
This article provides resolutions for the problem where users are not able to connect remotely to SQL Server using TCP/IP protocol.
13 lip 2021 · A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible.
