Greetings, An external IIS intranet site is accessed by some of our users. The site requires authentication - possibly NTLM. The users wanting access to the site are behind a squid proxy: Squid Cache: Version 3.0.STABLE7 configure options: '--prefix=/usr/local/squid' A previous version of squid (V2.6) which we were running popped up a username/password dialog box prompting for a username and password when this site was accessed. I'm told that the authentication does work Squid Cache: Version 2.6.STABLE4-20061004 configure options: '--enable-async-io' '--enable-poll' '--enable-gnuregex' '--sysconfdir=/global/proxy/etc' 'CC=gcc' 'CFLAGS=-O3' The user now does not get the authentication dialog - instead the message: You are not authorized to view this page You do not have permission to view this directory or page using the credentials that you supplied because your Web browser is sending a WWW-Authenticate header field that the Web server is not configured to accept. HTTP Error 401.2 - Unauthorized: Access is denied due to server configuration. Internet Information Services (IIS) I have checked the config options in squid.conf and none seem to indicate the difference between the two installations. A search has revelaled several posts similar to this but none mentions a solution. any assistance much appreciated. Tony ------------------------------------------------------------ Tony Carter System Administrator NSW Department of Primary Industries Suite 5 Level 1 City Square 76 Harbour Dr Coffs Harbour NSW 2450 PO Box 530 Coffs Harbour NSW 2450 Tel: +61 2 6650 3120 Fax: +61 2 6651 2780 tony.carter@xxxxxxxxxxxxxx -------------------------------------------------------------- This message is intended for the addressee named and may contain confidential information. If you are not the intended recipient, please delete it and notify the sender. Views expressed in this message are those of the individual sender, and are not necessarily the views of their organisation.