EM Console 11g shows OID is down

The Enterprise Manager Fusion Middleware Control 11g shows OID is down even though opmnctl shows OID is up.

The EM console also displays the following error while trying to access the OID instance under Farm_IDMDomain -> Identity and Access -> oid1 or while trying to create a wallet for SSL

Error:

Information Configuration settings are unavailable because /Farm_IDMDomain/OID_Inst/oid1 is down.

There could be 2 reasons for this.

Reason1:

The WebLogic user password used by EM Console to monitor OID is not correct.

Solution:

• Go to the Farm drop down menu on the top of EM Console -> Agent Monitored Targets -> Configure . Verify if the Weblogic Monitoring User Name is correct and Change the WebLogic Monitoring Password to the correct password. Click Ok.
• Check the OID status now.

Reason2:

The IP address/hostname given in the Middleware Administration Server Service URL is wrong.

The following is an example of the Middleware Administration Server Service URL

service:jmx:t3://your_ip_address:7002/jndi/weblogic.management.mbeanservers.domainruntime

Solution:

• Go to the Farm drop down menu on the top of EM Console -> Agent Monitored Targets -> Configure .
• Try using hostname instead of IP address. Click OK and verify the status of OID from EM console.