proxy with active directory authentication

[LotfiDZ]

I would like to configure Active Directory authentication in a newly installed pfSense community edition VM.
I installed the following packages:

• SQuid
• SQuidGuard
• LigntSquid for reporting
  I configured AD authentication in SQuid, and it's working
  And added an AD group of users in the Group ACL tab in squidguard, (of course, component activated)
  But now, when a user, tries to open a webpage, he gets an authentication dialogbox in a loop
  I would like to know, what i'm missing?
  Thank you in advance