I posted this message to microsoft.public.isa newsgroup, but have no answer. Looks like it's very rare situation, as nobody knows the solution. The original posting follows below: More than a year ago there was a posting in this conference: =========Beginning of the citation============== From: "Zachary Boldt" <Zach.Boldt@xxxxxxx> Subject: ISA hangs computer... HELP!! Date: Mon, 16 Jul 2001 15:48:07 -0700 [Sorry, skipped] I install ISA in the server and after it completes the main setup portion and wants to run the configuration wizard, the computer hangs - no blue screen, no nothing. It just freezes. I reboot the computer and try to go into the ISA Management Console, and the computer hangs again the same way. I install the ISA Management Console on another server and try to connect remotely to my server, but no go. =========The end of the citation================ Then he got no answer. Now I run into exactly the same situation. Does anybody know the solution now?