[Samba] rejected our name registration of WORKGROUP<1d> with error code 6

[azornoz]

Hi to all, I have a samba server that was working with security share 
in one subnet and now is listening on another interface, configured as a
PDC logon server with wins support and w98 clients, I followed the
howto: 
http://www.linuxfocus.org/English/March2002/article177.shtml

The clients added to the domain execute the logon scripts fine, but they
do not see the samba server in nethood, though they can access it in
nethood with \\ip_samba_server or \\netbios_name_samba_server, all the
clients w98  see each others.

I have this in log.nmbd

 [2004/05/13 11:52:29, 0]
nmbd/nmbd_nameregister.c:register_name_response(109)
 register_name_response: server at IP 172.26.0.2 rejected our name
registration of ADMINISTRACION<1d> with error code 6.
 [2004/05/13 11:52:29, 0]
nmbd/nmbd_become_lmb.c:become_local_master_fail2(425)
 become_local_master_fail2: failed to register name ADMINISTRACION<1d>
on subnet 172.26.0.101. Failed to become a local master browser.
 [2004/05/13 11:52:29, 0]
nmbd/nmbd_namelistdb.c:standard_fail_register(290)
 standard_fail_register: Failed to register/refresh name
ADMINISTRACION<1d> on subnet 172.26.0.101

I have to say that box in 172.26.0.2 is not networking very well,
because it doesn't response to ping's though it can access internet, see
other boxes share's in nethood and ping other boxes.

workgroup = ADMINISTRACION

and samba server ip is 172.26.0.101

Could anybody give me a tip on what is going bad, if log.nmbd doesn't
show who is local master browser, is something wrong?  what is the error
code 6?

thanks in advance
best regards