So apparently there was an issue with users from an AD group not being able allowed access (showed user unauthorised) and apparently my colleague fixed it by adding the AD for those users, now i dont know how he did that since im not adept with the checkpoint portal and its configurations since when i type the name of that AD group nothing appears on object explorer, so need help in this regard, have the screenshots attached above, on the left shows failed login and on the right the AD has been added (iqor.supervisor) which fixed the issue.