Hello ,
Thank you for checking Community page.
The issue looks like it's related to kerberos ticket and we need debug log with network trace for further investigation.
Could you follow the steps in following KB and send the information back to communitysupport@centrify.com?
(Please specify the same subject of this post: Re: Active directory group in smb.conf access is denied), thank you.
https://centrify.force.com/support/Article/KB-0446-How-to-Collect-Debug-Logs-from-a-Samba-Server
Regards,
Alan