Hi I try to access a page that requires a username and a password. The page is hosted on IIS. 1) If I bypass Squid completely, I get through (after the XP authentication dialog). 2) If I use Squid, I am asked for the username and password three times (auth dialog by web browser) and then I get "HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials". Each of these three attempts generates a TCP_MISS/401 in access.log. 3) I then logged in to the proxy server and used "lynx -auth=user:password www.domain.com" Messages from Lynx: Alert!: Invalid header 'WWW-Authenticate: Negotiate' Alert!: Invalid header 'WWW-Authenticate: NTLM' 401.2 Unauthorized: Access is denied due to server configuration. Any ideas how to solve this?