Hi I have a problem with my squid server. Squid works with authentication NTLM, it works very, well to access a website that requires also a authentication it creates problems. If i create a ACL with http_allow, the user have: 401 Unauthaurized: Acces is denied due to invalid credentials He don't have a login/password request. If i delete the http_allow, a login/pass windows is open but i see the Active Directory Domain i think's that he don't sent the good information at the web server. On a direct Internet Access, without proxy, no problems Anyone can help me ? Best regards Jerome