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Proxy authentication fails when you join a meeting created in a non-federated organization in Lync 2010

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Symptoms

Consider the following scenario:
  • You sign in to Microsoft Lync 2010 in an organization that has a proxy server deployed.
  • You try to join a meeting that is created by a user in a non-federated organization.
  • A proxy authentication dialog box appears.
  • You input proxy authentication credentials.
In this scenario, the proxy authentication fails and you cannot join the meeting.

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Cause

This issue occurs because a redundant backslash (\) is added before the user name when Lync 2010 connects to the proxy server.

Note The redundant backslash can only be observed in Network Trace.

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Resolution

To resolve this issue, install the following cumulative update:
2842627 Description of the cumulative update package for Lync 2010: July 2013

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Keywords: kbqfe, kbfix, kbsurveynew, kbexpertisebeginner, kb

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Article Info
Article ID : 2861325
Revision : 1
Created on : 1/7/2017
Published on : 7/12/2013
Exists online : False
Views : 287