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Wednesday, July 5, 2017

ASM Targets Show Down Status in 12c OEM after Grid Infrastructure Upgrade From 12.1.0.2 to 12.2.0.1 With Error: ORA-28040

Solution

Set the SQLNET.ALLOWED_LOGON_VERSION parameters explicitly to 8 in the sqlnet.ora file:

SQLNET.ALLOWED_LOGON_VERSION_SERVER=8
SQLNET.ALLOWED_LOGON_VERSION_CLIENT=8

Reloading the listener will fix the issue.

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