Hi guys. We have been using squid for a long time in our company. Right now, i'm testing the latest version ( 3.3.3 so far ) and i'm facing some problems with the authentication process. In our network, we have a "mixed" environment where 95% of the machines are joined in the domain and the other 5% not. For all "domain" machines the ntlm authentication is working perfectly but for the "non-domain" machines, the basic authentication isn't working and the auth popup keeps showing up. Do i have to add or change anything in my configuration file to enable this "multiple authentication" feature? The authentication is define as follows: auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 10 startup=10 idle=1 auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic auth_param basic children 10 startup=10 idle=1 NOTE: This scenario works like a charm in the 2.x version. Thanks in advance. Atenciosamente, Rômulo Giordani Boschetti IT Analyst - HSC Brasil