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EM 13.4: Post Upgrade to EM 13.4, Agent Page Shows 'Communication between the Oracle Management Service to the Agent is unavailable' (Doc ID 2641072.1)

Last updated on APRIL 02, 2021

Applies to:

Enterprise Manager Base Platform - Version to [Release 13c]
Information in this document applies to any platform.


After Upgrading OMS to 13.4, all the agent home pages are showing the following error:

Error : Communication between the Oracle Management Service to the Agent is unavailable. Any features or displayed information requiring this communication will be unavailable.

Because of this issue, Agent upgrade may fail with communication errors.


EM OMS upgraded to 13.4


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