Monday, July 18, 2011

Exchange Certificate Renewal Causes Lync\Exchange IM Integration Fail

Recently ran into an issue where Lync\Exchange IM Integration stopped working after renewing the certificate on the Exchange server. This was caused by the change of the ThumbPrint of the certificate.


The ThumbPrint of the new certificate has changed and this needs to be updated by running the following Cmdlet


After updating the ThumbPrint, IM is available again in OWA.

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