I'm having issues with users losing permissions after an indeterminate period of time. I can't seem to figure out if it is a permissions issue or kerberos ticket or what? I don't see any authentication errors in the logs. Windows "Effective Permissions" shows the user as having full control. Sometimes restarting samba services fixes it, sometimes not. I'm not sure where to look. Samba 4.5.4 getfacl for directories that the user can still rwx for are the same as the one where they lose write. Regards, John.