Using Server-Side Logging to Troubleshoot Mobility Issues
Sometimes, the quickest way to troubleshoot a mobility issue is to view the server-side logs. In this article, we'll show you how to use server-side logging to gather the data you need. You will also learn how to spot a problem and determine what's gone wrong.
Read more at source :http://blogs.technet.com/b/nexthop/archive/2012/05/23/using-server-side-logging-to-troubleshoot-mobility-issues.aspx