Good evening, First time in the list, and I´m having a terrible issue with my squid. Had 2.5STABLE12 running with no auth and recently upgraded to 3.0STABLE6 with auth against Windows DC. The problem is: everytime when trying to access a website that asks for a user and a password (some FTP sites and even some websites), I don´t receive the "INPUT USERNAME AND PASSWORD" box. When I had no authentication method running in Squid, I´d get an error message "when trying to authenticate. Squid sent the command FTP<password> and received the reply ´User anonymous cannot log in´" (this one is for FTP sites). All around the world I have searched for an answer, and I always received the same one: "Place the username and password in the URL". K, fine, that works, partially, because the FTP always opens as read-only (and also the idea of having users´s passwords in our log files is against our security policy). The same goes for the websites that require authentication (this situation happens mostly when it´s an authentication method from Apache or IIS): no authentication box. After the upgrade, when accessing sites/FTP that require authentication, I keep getting an authentication box, but from my proxy, not from the website/FTP. Unfortunetly Google couldn´t help me out with this situation, and since I had luck when consulting the netfilter list for some issues with iptables, I hope I´d get the same result coming to squid list. I thank everyone in advance for the attention. Henrique