I have been using Squid 2.7 (Windows) stable for about 8 months now with now problems. I use NTLM authentication and up to about 10 days ago the squid.log file happily logged the username of the surfer. I have checked back through our change management logs and can't see any changes on the server or the squid configuration. The following are extracts from the conf file: auth_param ntlm program c:/squid/libexec/mswin_ntlm_auth.exe auth_param ntlm children 25 acl localnet proxy_auth REQUIRED src 192.168.1.0/255.255.255.0 logformat squid %tg %>A %un %ui %Ss/%03Hs %<st %rm %ru %Sh/%<A %mt Any pointers would be greatly appreciated. Matt -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Username-in-squid-log-stopped-tp2537276p2537276.html Sent from the Squid - Users mailing list archive at Nabble.com.