samba - May 2010 - One user can't login on PDC without a network connection

Hi,

Summary
In my testlab I have a Samba pdc setup. All is running fine except for
1 problem. I have a user (B) that cannot login without a network
connection, the error message is: "there are currently no logon
servers available to service the logon request". When I plug in the
network cable I can login again. When I do a network-less login as
another user (A) on the same machine I can login without any problems.


Background
My first user (user A) at first got the same error message. I replaced
the smbpasswd backend with tdbsam and this problem disappeared I made
a new user (user B), logged in on the same machine with network
connection, logged out, unplugged the cable and tried logging in only
with this user I get the: "there are currently no logon servers
available to service the logon request" error. I am running Debian
stable on the server with a backported Samba, the clients run Windows
7.

As a side note, the login script for user B isn't working either,
maybe the two are related. Any ideas what might be the problem? Thanks
in advance for your help!

# cat /etc/samba/smb.conf
[global]
workgroup = HOME
passwd chat = *New*Password* %n\n*Re-enter*new*password* %n\n *Password*changed*
username map = /etc/samba/smbusers
syslog = 0
name resolve order = wins bcast hosts
add user script = /usr/sbin/useradd -m -G users '%u'
delete user script = /usr/sbin/userdel -r '%u'
add group script = /usr/sbin/groupadd '%g'
delete group script = /usr/sbin/groupdel '%g'
add user to group script = /usr/sbin/usermod -G '%g' '%u'
delete user from group script = /usr/bin/gpasswd -d '%u' '%g'
add machine script = /usr/sbin/useradd -s /bin/false '%u'
logon script = scripts/login.bat
logon path logon drive = Z:
domain logons = Yes
preferred master = Yes
wins support = Yes
passdb backend = tdbsam

[Share]
comment = Share
path = /media/share
#valid users = %G
inherit permissions = yes
read only = No

[netlogon]
comment = Network Logon Service
path = /media/netlogon
#valid users = %S
#read only = yes

I solved this with the instructions listed below. The problem was that
the domain name for user B was the hostname of the server and not the
'workgroup = HOME'  from smb.conf. Any ideas what caused this problem
in the first place?

-Instructions
Use pdbedit  and make sure that the DOMAIN line contains the correct
domain name:

# pdbedit -Lv your_username

if it doesn't contain the correct domain name do the following:

# pdbedit -i tdbsam -e smbpasswd
# pdbedit -i smbpasswd -e tdbsam

http://lists.samba.org/archive/samba/2008-October/144077.html