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

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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 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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Keywords: kbqfe, kbfix, kbsurveynew, kbexpertiseinter, kb

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Article Info
Article ID : 2691941
Revision : 1
Created on : 1/7/2017
Published on : 5/24/2012
Exists online : False
Views : 155