Lync Server 2010 user cannot join a Lync Online meeting by clicking "Join online meeting"

Article ID: 2691941 - View products that this article applies to.
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SYMPTOMS

Assume that in a Microsoft Lync Server 2010 environment you install the Lync Server 2010 cumulative updates that were released in February 2012. When a user clicks the Join online meeting link to join a Lync Online meeting, the web browser opens as expected. However, the client for Lync Server 2010 does not start.

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CAUSE

This issue occurs because the user must download and install a new JavascriptResourcehandler.ashx file on the client computer after the update is installed on the server. However, the file cannot be downloaded if a legacy JavascriptResourcehandler.ashx file in the cache has not expired. Therefore, the web browser cannot be redirected to the user's server pool.

Note When a user tries to join a Lync Online meeting, the JavascriptResourcehandler.ashx file must be downloaded from the Lync Server 2010 server. The expiration time of the file is one day.
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RESOLUTION

To resolve this issue, install the following update:
2689846
(http://support.microsoft.com/kb/2689846/ )
Description of the update for Lync Server 2010: March 2012
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WORKAROUND

To work around this issue, delete all temporary Internet files in the web browser on the client computer.
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Properties

Article ID: 2691941 - Last Review: May 24, 2012 - Revision: 3.0
APPLIES TO
  • Microsoft Lync Server 2010 Standard Edition
  • Microsoft Lync Server 2010 Enterprise Edition
Keywords: 
kbqfe kbfix kbsurveynew kbexpertiseinter KB2691941
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