- Plesk 12.5 for Windows
Migration or backup of remote MS SQL Database failed with:
Unable to backup database 'db_data'
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
- Make sure that service SQL Browser is running on the server.
- If the firewall is enabled on the server, put
sqlbrowser.exeand/or UDP port 1434 into the exception (MS SQL Probe firewall rule)