Samba PDC + XP: still not solved?

[Robin Edgar - Tripany]

Hi all,

I've been reading and there's a lot to read but no solution!
I'm using samba 2.2.3a-12.3 for Debian and I seem to have set
everything I can:

changed the signsecurechannel, sealsecurechannel in the registry to 0
(and back to 1),

Changed the policies for autoenrollent and the password encryption
(put that off in samba and in windows and then back on again)

But ALWAYS do I get the following problem - when I change the settings
in the computer properties samba makes the accounts fine (in passwd,
shadow and smbpasswd), and I get
the welcome to domain screen. When I reboot and try to log in, it can't find the
PDC or it won't accept my logon. When I have a look in the logfile all
it shows is:

[2003/11/21 18:03:37, 2] smbd/server.c:exit_server(458)
  Closing connections
[2003/11/21 18:03:50, 2] lib/access.c:check_access(321)
  Allowed connection from  (192.168.0.28)
[2003/11/21 18:04:01, 2] smbd/server.c:exit_server(458)
  Closing connections
[2003/11/21 18:07:11, 1] smbd/reply.c:reply_sesssetup_and_X(1052)
  Username guest is invalid on this system

(last message after I log into the XP machine instead of the domain).

I've seen this message a few times, but nowhere is there any real
solution! SOMEONE must have fixed this by now!