Error al acoplar estaciones Windows Xp al dominio samba (problemas con smb.conf???)

[warbandit69]

Hola fotreros, gracias por leer mi post, he hecho una configuración con samba para que mi Linux CentOS 5.2 actue como PDC de Windows, he hecho ya varios dominios, pero este me esta dando problemas, he creado los usuario en linux y tambien en samba ( #adduser usuario #smbpasswd -a usuario ) y no me ha dado problemas, pero cuando intento ingresar los equipos XP en el dominio e introduzco cualquier usuario, incluso root (tambien lo agregue en el samba) me da el siguiente error:

No se puede ingresar el dominio

Nombre de Usuario no Encontrado

Aca les dejo el contenido de smb.conf, cualquier ayuda se agradecera mucho, incluso dando karma.

smb.conf

Código:

#======================= Global Settings =====================================
[global]
	passwd chat = *New*UNIX*password* %n\n *ReType*new*UNIX*password* %n\n *passwd:*all*authentication*tokens*updated*successfully*
	delete user from group script = /usr/sbin/groupmod -R %u %g
	passwd program = /usr/bin/passwd %u
	dns proxy = no  
	netbios name = alonso
	default = netlogon
	local master = yes
        preferred master = yes 
	workgroup = her.local
	debug level = 1
	os level = 34
	security = user
	add machine script = /usr/sbin/useradd -s /bin/false -d /var/lib/nobody %u
	delete user script = /usr/sbin/userdel -r %u 
	max log size = 50
	log level = 4
	log file = /var/log/samba/%m.log
	smb passwd file = /etc/samba/smbpasswd
	add group script = /usr/sbin/groupadd %g 
	socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
	delete group script = /usr/sbin/groupdel %g 
	add user to group script = /usr/sbin/groupmod -A %u %g 
	client ntlmv2 auth = yes
	logon drive = H:
	client use spnego = yes 
	null passwords = yes
	domain master = yes 
	encrypt passwords = yes
	winbind use default domain = no
	logon home = 
	template shell = /bin/false
	wins support = true
	server string = Servidor Hospital El Rosario
	unix password sync = yes
	logon path = 
	client lanman auth = no
	add user script = /usr/sbin/useradd -m %u 
	bind interfaces only = Yes
	domain logons = yes
	domain admin group = @sysadmin
	admin users = @sysadmin
	printer admin = @sysadmin


#============================ Share Definitions ==============================
[netlogon]
	path = /etc/samba/netlogon/
        public = no
        writeable = no
        browsable = no

[Produc]
	vfs objects = recycle audit
	writeable = yes
	path = /usr/prod
	force group = root
	recycle:keeptree = true
	recycle:exclude = *.att|*.mai|*.ldb|*.idx|*.tmp|*.mp3|*.jpg|~$
	force user = root
	comment = Carpeta para Respaldos
	public = yes
	force directory mode = 777
	force group = root