Thanks Tom! I will continue to look for a KB that will help. (what does IIRC mean?) Clients are all XP pro and one 2k Pro using Outlook 2002 (updated and patched). Neither ISA shows anything in the System / Application event logs ...... except for a crap load of :15105 notices "ISA Server detected an all port scan attack from Internet Protocol (IP) address x.x.x.x" Should I be doing something with these source IP addresses? Joseph Danielsen: MCSA-Messaging, MCP Network Blade Inc. 49 Marcy Street Somerset, NJ 08873 Phone: 732-259-0201 www.networkblade.com ________________________________ From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] Sent: Thu 10/27/2005 3:40 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: VPN Clients - No PPTP traffic http://www.ISAserver.org Hi Joseph, It could be the client operating systems. I recall a KB article that mentioned a fix for PPTP connections that dropped early -- but IIRC, the drops took place after a minute or two. What client OS's are they using? The Event Viewer on the VPN server usually says why the connection was dropped, if the VPN server was aware of the droppage. Tom Thomas W Shinder, M.D. Site: www.isaserver.org <http://www.isaserver.org/> Blog: http://spaces.msn.com/members/drisa/ Book: http://tinyurl.com/3xqb7 <http://tinyurl.com/3xqb7> MVP -- ISA Firewalls **Who is John Galt?** ________________________________ From: Joseph Danielsen [mailto:JDanielsen@xxxxxxxxxxxxxxxx] Sent: Thursday, October 27, 2005 2:31 PM To: [ISAserver.org Discussion List] Subject: VPN Clients - No PPTP traffic I am at a remote site - inwhich which all users connect to the main office via individual VPN clients (temp situation for next 2 months). After approx 20 minutes, no traffic seems to go through the PPTP tunnel. If I disconnect, then re-connect all works well. I don't know if one of the ISA boxes are to blame. My laptop is also connected to the main office, with the same applications opened and I have no problems. Main Office Firewall: Windows 2003, ISA 2004. Remote Office Firewall: Windows 2003, ISA 2000. Help! Please Help! ------------------------------------------------------ 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 ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jdanielsen@xxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx