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EM 12c: Enterprise Manager 12c Cloud Control Agent Will Not Upload after OMS Server Reboot with Error: Backend WLS or EM application seems to be down (Doc ID 1414863.1)

Last updated on AUGUST 19, 2022

Applies to:

Enterprise Manager Base Platform - Version and later
Information in this document applies to any platform.


The Enterprise Manager (EM) Cloud Control Management (Central) Agent is not uploading after OMS server restart. Both the OMS and the agent started up without error but the agent no longer uploads to the OMS.

Accessing the upload url shows this error:

Backend WLS or EM application seems to be down


Additionally, no other discovered EM 12c Cloud Control agents are able to upload to the OMS, either.



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