samba - Jun 2002 - Joining a W2k domain - Could not look up dc's for domain

Hello.

I'm trying to join a W2K domain. The DC runs in mixed mode.

1.
In Active Directory I added the machine "DELL1-W2K" with option
"NT 4.0 / 3.51 machine can use that account".
For NT 4 machines the domain is WIN2KTESTSERVER. For W2K machines or higher the
domain is "INTERN.DE".

2.
On LINUX I joined the domain "INTERN.DE" with
# smbpasswd -D 10 -j intern.de  -r win2ktestserver.intern.de -U administrator
Joined domain WIN2KSERVER


When starting smbd, nmbd, winbindd with log level 10 I get a error message in 
-- log.winbindd -- 
[2002/06/05 15:56:18, 3] nsswitch/winbindd_cm.c:cm_get_dc_name(147)
  Could not look up dc's for domain WIN2KTESTSERVER
-- log.winbindd -- 

[global]
        workgroup = win2ktestserver
        netbios name = DELL1-w2k
        security = DOMAIN
        encrypt passwords = Yes
        password server = *
        log file =  /var/log/samba/ad.%m.log
        # default ist 5000
        max log size = 50000
        log level = 10

        # debug pid = YES
        # debug uid = YES

        # winbindd
        winbind uid = 10000-20000
        winbind gid = 10000-20000
        winbind separator = +
        winbind cache time = 60
        # 2002.06.05 othinnes, keine Anzeige des Domaen-Namens
"PULSAAR' bei 'ls', 'smbstatus', 'getfacl' usw.
        winbind use default domain = YES
        template homedir = /fileserver/home/%D/%U
        template shell = /bin/bash
        # winbindd


Did I misconfigure something?

Thank you in advance?