Samba WINS problem

Hi peoples !

I have a big problem with samba. We have a samba-ldap-lam configuration with ~290 machines (windows95-windows xp).
The system is workig good, but the wins service crashig at every day! The error message:

[2005/02/03 12:49:25, 0] nmbd/nmbd_nameregister.c:register_name_response(130)
register_name_response: WINS server at IP xxx.xxx.xxx.xxx rejected our name registration of MYSAMBASERVERNAME<20> IP xxx.xxx.xxx.xxx with error code 5.
[2005/02/03 12:49:25, 0] nmbd/nmbd_namelistdb.c:standard_fail_register(283)
standard_fail_register: Failed to register/refresh name MYSAMBASERVERNAME<20> on subnet UNICAST_SUBNET
[2005/02/03 13:10:04, 0] nmbd/nmbd.c:terminate(56)
Got SIGTERM: going down...

This working on a fedora core 2.
If i restart the service then every working without problems ~ one day, but next day crashing again...
i have two ip number for this server from different subnets.

versions:
samba-3.0.10-1.fc2
openldap-servers-2.1.29-1

smb.conf:
[global]

  workgroup = MYWORKGROUPNAME
       netbios name = MYSAMBASERVERNAME
       unix charset = UTF-8
  security = user
       server string = server
       encrypt passwords = Yes
       username map = /etc/samba/smbusers
       logon script = %U.bat
       logon drive = H:
       logon path = \\%N\profiles\%U
       logon home = \\home\%u
       domain logons = Yes
       os level = 64
       wins support = yes
       preferred master = Yes
       domain master = Yes
       local master = Yes
       passdb backend = ldapsam:ldap://127.0.0.1
       ldap suffix = dc=DCNAME,dc=DCNAME
       ldap admin dn = cn=Manager,dc=DCNAME,dc=DCNAME
       ldap ssl = no
       ldap machine suffix = ou=People
       ldap user suffix = ou=People
       ldap group suffix = ou=Groups

       map acl inherit = Yes

       printing = cups
       printer admin = Administrator

show add printer wizard = No
add user script = /var/lib/samba/sbin/smbldap-useradd.pl -a -m '%u'
delete user script = /var/lib/samba/sbin/smbldap-userdel.pl %u
add group script = /var/lib/samba/sbin/smbldap-groupadd.pl -p '%g'
delete group script = /var/lib/samba/sbin/smbldap-groupdel.pl '%g'
add user to group script = /var/lib/samba/sbin/smbldap-groupmod.pl -m '%u' '%g'
delete user from group script = /var/lib/samba/sbin/smbldap-groupmod.pl -x '%u' '%g'
set primary group script = /var/lib/samba/sbin/smbldap-usermod.pl -g '%g' '%u'
add machine script = /var/lib/samba/sbin/smbldap-useradd.pl -w '%u'
template shell = /bin/false
winbind use default domain = no
idmap uid = 16777216-33554431
idmap gid = 16777216-33554431

Can anyone help me?

bye

Tibor

--
Demeter Tibor, Rendszergazda	| Telefon.: 06-70/318-9705
Net-Working Informatikai Bt.	| Fax.:	    06-70/901-6295
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