Hi BK, Run netmon on the internal interface and see if worm traffic is barraging the firewall. HTH, Tom Thomas W Shinder www.isaserver.org/shinder ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp -----Original Message----- From: bk Lau [mailto:bklau@xxxxxxxxxxx] Sent: Sunday, September 07, 2003 10:28 PM To: [ISAserver.org Discussion List] Subject: [isalist] Mrcrosoft Firewall used 100% of CPU time http://www.ISAserver.org After Microsoft Firewall service started for about 10 minites, whole whole system hange, CPU process reach 100%, after stop firewall services, CPU process back to normal. ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: tshinder@xxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')