EM 12c : Enterprise Manager 12c Cloud Control emctl pingOMS fails 'Received Key Mismatch from OMS'

(Doc ID 1996344.1)

Last updated on APRIL 14, 2018

Applies to:

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


Enterprise Manager (EM) Cloud Control


$/AGENT_INST/bin/emctl pingOMS
            fails with following error
            Oracle Enterprise Manager Cloud Control 12c Release 3
            Copyright (c) 1996, 2013 Oracle Corporation.  All rights reserved.
            EMD pingOMS error: Received Key Mismatch from OMS

$/AGENT_INST/bin/emctl pingOMS

fails with following error

Oracle Enterprise Manager Cloud Control 12c Release 2
Copyright (c) 1996, 2012 Oracle Corporation.  All rights reserved.
EMD pingOMS error: Failure connecting to https://myoms,oracle.com:4899/empbs/upload/ , err Connection establishment timed out


/AGENT_INST/sysman/log/gcagent.log reports the following ping error

2014-10-14 15:18:52,948 [122:9FC136A7] WARN - Ping communication error
o.s.emSDK.agent.comm.exception.ConnectException [Failure connecting to https://toms.oracle.com:4903/empbs/upload , err Connection establishment timed out]
java.io.InterruptedIOException [Connection establishment timed out]


Connectivity from agent to OMS shows 100% ICMP ping packet loss

$ ping oms.oracle.com
PING tceidmp8r6ap14-mgt.ecap.cciio (10.x.25.2) 56(84) bytes of data.
--- tceidmp8r6ap14-mgt.ecap.cciio ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2819ms


OMS upload url testing using wget fails

$ wget https://toms.oracle.com:4903/empbs/upload --no-check-certificate

--2014-10-15 13:16:17--  https://toms.oracle.com:4903/empbs/upload
Resolving toms.oracle.com... 10.x.25.2
Connecting to oms.oracle.com|10.x.25.2|:4903... failed: Connection time
--2014-10-15 13:17:21--  (try: 2)  https://toms.oracle.com:4903/empbs/uploa
Connecting to toms.oracle.com|10.x.25.2|:4903... failed: Connection timed out.



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