There is a registry setting that needs to be done on the OWA server. I found this fact the other day and finally resolved my OWA issue. There is a KB article that talks about the reg key update. It is the scenario where you have an SSL off-loading device. http://support.microsoft.com/default.aspx?scid=kb;en-us;327800 The scenario: OWA receives the request and doesn't realize that it's an HTTPS request, so replies with the various component URLs as HTTP:// instead. -----Original Message----- From: Walter Wilson [mailto:walter.wilson@xxxxxxxxxx] Sent: Tuesday, March 29, 2005 7:50 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Publishing OWA through a single homed ISA- 2004 server http://www.ISAserver.org No, this is not an endurance test....(not for you guys anyway!) Someone had suggested that ISA needed to be the gateway in order to proxy the connections - I've since proved this to be incorrect by testing it in straight http which works. I've also found in the log at connection: protocol: https action: failed connection dest: ISA source: client HTTP status: authentication required.... log record type: web proxy the weird thing is the URL is: http:// etc.. NOT https. then a connection: protocol: HTTPS initiated connection etc.. from the 'firewall' log record type Appears it may be a problem with the certificate but it's not showing itself very easily.. ------------------------------------------------------ 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: World of Windows Networking: http://www.windowsnetworking.com 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: davidh@xxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx