Myself and many other users are experiencing many issues with SMB shares using Windows Active Directory since upgrading to 6.10.2. Upgrading to 6.10.3 has not fixed this.
This are all listed in the forum thread
My own issue is that for most of the time since upgrading to 6.10.2 I cannot access any UNRAID share with my own user account - however this is intermittent and occasionally access works fine for a day or two. A few other user accounts are affected but also some accounts are fine and have no problems.
My log drive is 98% full due to very large syslog files. The syslog shows continual refused mount requests for my account and this seems to be as it cannot convert my SID to a UID.
Jul 15 21:58:49 UNRAID01 smbd[****]: check_account: Failed to convert SID S-1-5-21-XXXXXXXX-XXXXXXXX-XXXXXXXX-1105 to a UID (dom_user[DOMAIN\username)
The /var/log/samba/log.smbd log file is also full of the same error message.
I also note this
root@UNRAID01:~# wbinfo -i myuser failed to call wbcGetpwnam: WBC_ERR_DOMAIN_NOT_FOUND Could not get info for user myuser root@UNRAID01:~# wbinfo -i okuser okuser:*:NNNNNNNN:NNNNNNNNNN:okuser:/home/DOMAIN/okuser:/bin/false
I can call wbinfo for all users on the UNRAID server and this gets the correct SIDs for all.