Why don't the user's groups match those in AD?

Question

Active Directory

Situation: The user does not have access to the folder. The permissions on the folder have been granted to the group. I check in AD - the user has this group. The user has gpresult / R - and I see that the composition of the user's groups is different from what is in AD ... reboot does not help, what is it and how to treat it?

Answer 1

Found. There was some problem with the kerberos ticket. The klist purge team helped