Lync presence not updating
I had a look at the problematic FE Certificates store and found a non self-signed certificate in the Trusted Root Certification Authorities which is a problem for the Windows Server 2012 OS as per following article.
All I had to do was to remove that certificate from the container, reboot the server and things went back to normal.
I've recently came up with an issue where some users on a contact list would show up as stuck on "Updating..." and others would show the presence fine.
It was a pool with 3x FEs and it was easy to pinpoint it was something probably related to one of the FEs.
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Presence publication happens when one user is trying update its own presence information to another user.
Then the Lync server responds back with the latest information about the user in response back to the Lync client.
Presence subscription happens when one user is trying get the update presence information of another user.
Figure 2 Presence publication In the snooper trace this what it would look like Lync Client manage contact lists for users requires persistent subscriptions to receive the most current presence state of their contacts.
For this reason polling for presence is required at regular intervals.I have confirmed her settings with mine, even reloaded her local copy of the Lync.