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Can't join Lync online audio/video meeting in Skype for Business when a proxy server is set


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Symptoms

This issue occurs in the following scenario:
  • You don't deploy an edge server in a Microsoft Lync Server 2013 environment.
  • You use HTTP proxy in Microsoft Skype for Business installation that has the December 8, 2015 security update installed.
  • You allow the Internet connection only through HTTP proxy.
  • You try to anonymously join a non-federated Lync audio and video (AV) meeting in the client.

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Cause

This issue occurs because there is a regression in the December 8, 2015 security update that prevents Microsoft Lync 2013 (Skype for Business) from building a media connection with Lync Server. Therefore, the client can't connect to the server to join the meeting.

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Resolution

To fix this issue, install the April 12, 2016 security update (KB3114944) for Lync 2013 (Skype for Business).

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Keywords: kbfix, kbqfe, kbsurveynew, kbexpertiseinter, kb

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Article Info
Article ID : 3153356
Revision : 1
Created on : 1/7/2017
Published on : 4/12/2016
Exists online : False
Views : 243