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“Data source name not found and no default driver specified” error is displayed

2025.12.09

This section explains the error: “Data source name not found and no default driver specified.”

Description

This error occurs when the DSN setting used for ODBC connection does not exist in the System DSN.

Cause

The data source is configured as a User DSN, which cannot be referenced by the service processes.

Solution

Since DeviceXPlorer Data Logger runs as a service process, please create the DSN as a System DSN.
*The same applies if DeviceXPlorer OPC Server is running as a service.