You configure the location information manually in Microsoft Lync 2010, and then log on from that location. In this situation, Lync 2010 does not populate the location information automatically that you configured.
Note You can find the location information in the Set Your Location drop-down list.
To resolve this issue, install the following cumulative update:
2467763 Description of the cumulative update package for Lync 2010: January 2011
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.