Our Jabber clients are now starting to say that they can't connect to the server, and when I try to view the services I see connection to the server cannot be established(certificate exception).
This can potentially be a Certificate Expiry issue on Call Manager.
Steps you can attempt to resolve this issue:
Login to CUCM OS administration page
Navigate to Security then click Certificate management
In the searchbar type "tomcat" and hit search
If any tomcat certificates are expired, click the certificate and regenerate it
Next restart the Cisco Tomcat service on the CLI of the CUCM (Publisher & Subscriber) using the command "Utils service restart Cisco Tomcat Service"
Re attempt to login to Jabber
Regards Rondell
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