[Samba] The Group Policy Client service failed the logon. Access is denied.

[TAKAHASHI Motonobu]

From: Mat Enders <mat.enders at gmail.com>
Date: Wed, 4 Jan 2012 02:38:57 -0500

>           Let give the background.  We replaced our PDC with a new
> machine.  Both old and new machines are running Debian 6.0 Squeeze and
> Samba 3.5.6.  moved all data and user accounts to new server.
(snip)
> However on the Win7 machines none
> of the network users can log in to the machine.  Upon attempting you
> get the this error "The Group Policy Client service failed the logon.
> Access is denied."  After Googling around for a solution I have
> attempted the following solutions:

You re-created all Samba users?
I met same issue when I re-used passdb.tdb from old machine, because
old machine's SID and new machine's SID was not same.

Or to edit all users' SID manually, the issue will be solved, I think.

---
TAKAHASHI Motonobu <monyo at samba.gr.jp>