Wednesday, September 12, 2012

Lync 2010 clients stuck in Offline state after patching


So after applying all the latest patches to my Lync 2010 server, my users started complaining that they were stuck in the Offline state but still 'connected'.  I noticed some errors in the event log related to SSL problems so after digging around I went into the Lync Deployment Wizard and ran the certificate wizard.  One of my external certificate entries was displaying as 'missing'.  After digging further I figured out that one of my certificates had expired but hadn't caused any problems so I hadn't noticed.  So I just installed an updated certificate and Assigned it using the wizard and shortly after all my Lync clients switched back to an Available status.

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