I use squid 2.5 stable14 anda samba 3.0.2 squid conf: auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 5 auth_param ntlm max_challenge_reuses 0 auth_param ntlm max_challenge_lifetime 15 minutes auth_param ntlm use_ntlm_negotiate on auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours auth_param basic casesensitive off When I try to access internet I obtain cache denied: cache.log:[2006/12/12 16:42:07, 3] libsmb/ntlmssp.c:ntlmssp _server_auth(672) Got user=[ivan] domain=[EGOBIANCHI] workstation=[ARTISTICO1] len1=24 len2=0 [2006/12/12 16:42:07, 3] utils/ntlm_auth.c:winbind_pw_check(429) Login for user [domain]\[user]@[PC1] failed due to [Logon server] What does it means??? TIA Ivan