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12c: ORA-28040 After Upgrade: No Matching Authentication Protocol (Doc ID 1957995.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Oracle Database - Standard Edition - Version 12.2.0.1 to 12.2.0.1 [Release 12.2]
Oracle Net Services - Version 12.1.0.1 to 12.2.0.1 [Release 12.1 to 12.2]
Oracle Database - Enterprise Edition - Version 12.2.0.1 to 12.2.0.1 [Release 12.2]
Business Intelligence Suite Enterprise Edition - Version 11.1.1.9.180116 to 11.1.1.9.180116 [Release 11g]
Information in this document applies to any platform.

Symptoms

Following an upgrade to the version 12c database, the following errors are thrown when attempting to connect from remote
clients:


ORA-28040: No matching authentication protocol exception

Changes

 This is a new installation of the version 12 database.

Cause

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