Troubleshooting Zabbix MSSQL: "Failed to fetch info data" or "No data for 30m" Errors

Further Resources

: If the SQL instance is under heavy load, the info fetch might timeout. Try increasing the parameter in the Zabbix server/agent configuration files. Detect Issues in Your Zabbix Instance Before It's Too Late 25 Mar 2026 —

On the Zabbix Server, run:

Verify that the credentials in your Zabbix host macros (e.g., $MSSQL.USER $MSSQL.PASSWORD ) match the SQL login. Connection String Problems Port Syntax : Microsoft SQL Server does not use the directive in some ODBC configurations; use Server = ipaddress,1433 (comma instead of colon). Encryption & Certificates