Hi! I'm new to ISA server 2004 so I apologize in advanced for any dumb questions. When I run a Report under Top Users the user using up the most network traffic is "unknown" Same for top web traffic. I've done searches on how to identify what/who this is but no luck. Has anyone seen this before and can point me in a direction where I can figure out who this is? Pulling my hair out over here! Thanks in advanced! Regards, Christine Allen, MCSE Engineer II MicroData Group, Inc. 100 Cummings Center, Suite 146N Beverly, MA 01915 Voice 978.921.0990 x234 Fax 978.921.0950 http://www.microdata.com <http://www.microdata.com>