Hello altogether As the topic indicates I have a problem with google chrome authenticating against a windows server 2008 aktive directory. Firefox, for example works fine. These are the authentication lines I have in my squid.conf: auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 10 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 server, using basic auth_param basic credentialsttl 2 hours I assume the problem is having ntlm at first position. Google chrome tries to supply my credentials via ntlm, which fails. However unlike firefox it is not offering the basic scheme after canceling the login dialog. Therefore all users with google chrome can`t use the proxy. Do you have any ideas of how to adress this problem, aside from using basic as standard authentication scheme (which I would like to avoid due to the unencrypted passwords)??? If you need any additional information I am happy to provide it. Thanks in advance Benedikt