Using APM to secure VS by machine name

So I assume you are getting to the "Not Approved - Message Box"? I would suggest while at this page do a "sessiondump -allkeys | grep " from the command line and see what is listed in session.windows_info_os.last.computer". It might be that the session variable isn't populated when the iRule runs. It is also strange that your statistics are showing the ACCESS_POLICY_AGENT_EVENT isn't getting triggered. One other thing to try is to run Internet Explorer "as Administrator" and see if that helps if the windows info agent isn't getting anything. -Seth