Hi, I found exactly the same problem on chronium issue : http://code.google.com/p/chromium/issues/detail?id=54214 I've the problem with Windows XP, Vista and Thunderbird on Linux Ubuntu :( Regards. -- Michaël LOPEZ Administrateur Systèmes 38, Rue du Sentier - 75002 PARIS michael.lopez@xxxxxxxxxx | www.twenga.com The most comprehensive shopping search engine TwengaBlogs : www.twengablog.com Follow us on Twitter : www.twitter.com/twenga_uk Suivez-nous sur Twitter : www.twitter.com/twenga_fr Facebook : http://www.facebook.com/pages/Twenga/23268797546 -----Message d'origine----- De : Michaël Lopez [mailto:michael.lopez@xxxxxxxxxx] Envoyé : vendredi 29 juillet 2011 15:15 À : squid-users@xxxxxxxxxxxxxxx Objet : ntlm_auth with non integrated pc on domain controler HI, I has setup a squid 3.1 with ntlm_auth basic and ntlm. All it works but i have some trouble with non domain integrated computer (Windows. It works with MacOS). It show authenticate popup least 3 times. I think it ask NTLM method before basic method on these computers because the realm message is not show except if i cancel the first popup. Could you help me ? Regards. -- Michaël LOPEZ