Hi Lothar, The most common reason for this kind of failure is the DNS config on the ISA firewall. What is the DNS config on the ISA's interfaces. 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: Lothar Bernecker [mailto:l.bernecker@xxxxxxx] Sent: Monday, June 16, 2003 3:23 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: ISA/IIS Integrated Authentication Problem http://www.ISAserver.org Hi Tom, thank you very much for your answer. We joined the ISA Server to the domain and all users are domain users of the same domain but we still have the same problem as before. Is there anything one can do wrong when joinig the ISA server to the AD (we used msisaent.exe to do this with the array feature)? Regards, Lothar ------------------------------------------------------ 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')