I am having a problem with Ldap Auth/Squid. certain restricted users being prompted multiple times for auth even though it should be cached. This behaviour happens with a site such as http://www.euroinvestor.co.uk/ many others as well. It prompts them for the initial webpage then various ad's on the page as well. This also did not happen in squid2.5.6 but happens constantly in squid2.6.14 or squid2.6.16, i am guessing its some ldap config setting but who knows. Config info etc: Squid Cache: Version 2.6.STABLE16 configure options: '--prefix=/usr/local/squid2.6.16' '--enable-basic-auth-helpers=LDAP' '--enable-external-acl-helpers=ldap_group' '--enable-storeio=aufs,ufs entries in squid.conf: auth_param basic program /usr/local/squid2.6.16/libexec/squid_ldap_auth -d -P -b o=businesswire.com -h servername.businesswire.com -f (uid=%s) auth_param basic children 15 auth_param basic realm Business Wire Internet logon - Use InsideTrak username and password to log on auth_param basic credentialsttl 1 minute auth_param basic casesensitive off external_acl_type sfapp2ldapgroup %LOGIN /usr/local/squid2.6.16/libexec/squid_ldap_group -d -b "cn=Organization,cn=Businessw ire Employees,o=businesswire.com" -f (&(cn=%a)(uniquemember=uid=%v*)) -h sfapp2.businesswire.com Or maybe it's an ACL thing but cant figure out why it worked in squid2.5.6 but not in 2.6.16 with the same squid.conf config paramters. Debugging is on in the logs and login activity is shown. Thanks