[squid-users] Intermittent Problem with two proxy_auth acls

Hello,

I have a problem with proxy_auth acls and squid:

acl valid_accounts proxy_auth REQUIRED
acl privileged_users proxy_auth list of users
# valid accounts navigation is limited to begin of working hours and end
of working hours
# privileged_uers have no time limit and can navigate anytime

and then

http_access allow privileged_users not_porn
http_access allow privileged_users false_bads
http_access deny privileged_users bad_expressions
http_access deny privileged_users porn
http_access deny privileged_users bad_domains
http_access deny privileged_users bad_urls
http_access allow privileged_users
http_access deny valid_accounts horaire_travail
http_access deny valid_accounts horaire_fin_semaine
http_access allow not_porn
http_access allow false_bads
http_access deny bad_expressions
http_access deny porn
http_access deny bad_domains
http_access deny bad_urls
http_access allow valid_accounts
http_access deny all

When removing http_access ... privileged_uers ... everything works ok by
when adding them I have sometimes and now all time all user credentils
rejected.

TIA
Fathi Ben Nasr

(See attached file: smime.p7s)