EM 12c : 12.2 ASM / Database /Grid Infrastructure Targets are Shown as Down in the Console UI

(Doc ID 2276921.1)

Last updated on NOVEMBER 21, 2017

Applies to:

Enterprise Manager for Oracle Database - Version 12.1.0.7.0 to 12.1.0.8.0 [Release 12.1]
Information in this document applies to any platform.

Symptoms

Able to add 12.2 database successfully in 12.1.0.4 (or below) Enterprise Manager. Doing a test connection from the monitoring configuration page also works fine.
Once the database discovery is completed the database is shown as down from Enterprise Manager.

Issuing following command to validate the response metric shows:

emctl getmetric agent db122,oracle_database,Response
Oracle Enterprise Manager Cloud Control 12c Release 5
Copyright (c) 1996, 2015 Oracle Corporation. All rights reserved.
Status,State,oraerr,Archiver,DatabaseStatus,ActiveState
0,UNKNOWN,Failed to connect: java.sql.SQLException: ORA-28040: No matching authentication protocol
,UNKNOWN,UNKNOWN,UNKNOWN

 Similar message would be shown for ASM instance and Cluster targets also.

Cause

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