http://blogs.technet.com/b/yuridiogenes/archive/2009/07/10/identifying-the-source-of-the-traffic.aspxCouple of days ago I was assisting a friend to troubleshoot the infamous 5783 that was causing the authentication prompt issue that we all know about. In this case the problem was happening throughout the night, which was even odder because during theen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)