Hello everyone, I don't know why but out of the blue my microsoft msn doesn't work more! my last change in squid rules was to add acls for time. but I have done rollback already and there is problem with connection to microsoft msn yet. follow the mesage in /var/log/access.log 1327665937.497 206 192.168.30.152 TCP_DENIED/407 1972 POST http://gateway.messenger.hotmail.com/gateway/gateway.dll? - NONE/- text/html squid version is: squid-2.6.STABLE21-6.el5 on CentOs 5.4 I'm using authentication by Active Directory on windows server 2008 R2: auth_param ntlm program /usr/bin/ntlm_auth becomex/srv-ad1 --helper-protocol=squid-2.5-ntlmssp all other urls it's working well. only microsoft msn out of the blue it doesn't work! what is ? any tips is welcome. I have ever listened rumor about some authentication problems on Windows 2008 R2. so...anybody has some tips about issue please tell post here. thanks