Ntlm_auth squid_ldap_group authentication problem issue

[omarquina <omarquina@xxxxxxxxxxxxx>]

Hi, I have an arquitecture, of squid-Active Directory with NTLM 
authentication, I have users registered in Active Directory with 
character 'ñ' in their username, with ldap authentication work well, but 
mix ntlm with ldap_group, the user is not found, and can't be 
authenticated.

I used th param -S in squid_ldap_group, but nothing change

Is a problem of charset?, my linux use utf-8. Maybe change it to latin-1 
could resolve? with the variables unix charset, dos charset?