Hi, I've been using squid for some time, and recently we started to use NTLM authentication. My squid server is a Fedora Core 3, and we are authenticating against active directory in windows 2000, using the samba helper. However, we have some problems with Windows Media Player, which insists to always ask for authentication everytime it needs to change the stream bandwidth. This problems occurs only with WMP, browsing works fine (except the Java plug-in with the CONNECT method). I found some informations in MSDN about some problems about detecting if the proxy server is in Intranet Zone. In my setup, the workstations are not in the same subnet as the proxy server, may be this is the cause? Below is the relevant part of my config: auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 10 auth_param ntlm max_challenge_reuses 0 auth_param ntlm max_challenge_lifetime 2 minutes auth_param ntlm use_ntlm_negotiate on Thanks for any help Robson Paniago