Article ID: 2796746 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the automatic discovery process of the Lync 2010 client incorrectly uses the local SIP server that is returned by the DHCP server when you try to join the meeting.
To resolve this issue, install the following cumulative update:
(http://support.microsoft.com/kb/2791382 / )Description of the cumulative update package for Lync 2010: March 2013
For more information about how to set up DHCP for devices, go to the following Microsoft website:
How to set up DHCP for devicesFor more information about the cumulative update for Lync 2010 that is dated November 2011, click the following article number to view the article in the Microsoft Knowledge Base:
2514982For more information about Lync 2010 client administration, download the following guide from the Microsoft Download Center:
(http://support.microsoft.com/kb/2514982/ )Description of the cumulative update package for Lync 2010: November 2011
Lync 2010 client administration