[Samba] XP Failure to Join Domain

[Ken Smith]

I’m using SAMBA 3.0.4-6.3E as a PDC. I have Win98, WinNT4 and Win2000
clients successfully joined to the domain. But I can’t get an XP box to
join. The XP machine can ‘see’ shares on the SAMBA PDC but strangely does
not show up in network neighbourhood. You can find it if you search for it.

The PDC is just using smbpasswd, no LDAP

The machine add line in my smb.conf is as follows.....

add machine script = /usr/sbin/useradd -d /dev/null -g machines -c
Samba_Machine_Trust_Account -s /bin/false -M %u

When I try to join the XP (SP1) machine to the domain it gives the error:-

“Multiple connections to a server or shared resource by the same user, using
more than one username, are not allowed. Disconnect all previous connections
to the server or shared resource and try again”

I have applied all the various registry settings to the XP machine as
suggested, set the local policies and deleted all network connections with
"net use * /del" at a command prompt

The registry hive from the XP machine is.... 

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters]
"DisablePasswordChange"=dword:00000000
"requiresignorseal"=dword:00000000
"requirestrongkey"=dword:00000000
"sealsecurechannel"=dword:00000001
"signsecurechannel"=dword:00000001
"DBFlag"="0"
"Update"="no"

The log entry for the XP machine showing my attempts to join the domain in
/var/log/samba is

[2004/08/15 10:40:48, 0] lib/util_sock.c:read_socket_data(367)
  read_socket_data: recv failure for 4. Error = Connection reset by peer
[2004/08/15 10:51:02, 0] lib/util_sock.c:read_socket_data(367)
  read_socket_data: recv failure for 4. Error = Connection reset by peer
[2004/08/15 11:36:52, 0] lib/util_sock.c:read_socket_data(367)
  read_socket_data: recv failure for 4. Error = Connection reset by peer
[2004/08/15 11:42:19, 0] lib/util_sock.c:read_socket_data(367)
  read_socket_data: recv failure for 4. Error = Connection reset by peer

I'm a bit stuck - what have I missed - Is there a "Definitive Guide to
joining XP to a SAMBA PDC" out there somewhere....

Thanks in advance
 
Ken