EM12c, EM13c : Database Target status is down: ORA-28040: No matching authentication protocol

(Doc ID 2327105.1)

Last updated on NOVEMBER 10, 2017

Applies to:

Enterprise Manager for Oracle Database - Version 12.1.0.5.0 to 13.1.1.0.0 [Release 12.1 to 13.1]
Information in this document applies to any platform.

Symptoms

In Enterprise Manager (EM) Cloud Control, customer is trying to monitor the 12.2 Database. Though the configuration details are correct and the Database is up and running, the status of the target in Cloud Control report as DOWN.

Verifying the metric details, Response metric fails with the "ORA-28040: No matching authentication protocol" error.



Cause

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