On a Microsoft Lync Server 2010 front-end server, client users may experience the following symptoms:
- New users cannot sign in to the front-end server.
- Users cannot complete instant message conversations.
- Users cannot join meetings that are hosted on the front-end server.
This issue occurs because of a race condition in the rtcsrv.exe process.
Article ID: 3155594 - Last Review: May 20, 2016 - Revision: 1