samba - Mar 2006 - Samba Winbind wbinfo -u fails with "Error looking up domainusers"

> After functioning correctly for more than 6 months suddenly
> Samba died : the users and usergroups are not recognized
> anymore. Restarting the Windows 2000 ADS (mixed mode) server
> and/or the Debian Samba server does not help. I even re-added the
> server to the domain: 
> 
> net rpc join -U Administrator reports a sucessful join.
> Active Directory shows the Debian server's computer account wbinfo -t
> reports sucess wbinfo -g reports BuiltIn groups only
> wbinfo -u reports ""Error looking up domain users"
> 
> I have followed all the steps in "chapter 12.
> Troubleshooting" of "Using Samba", but no solution.
To make it even more curious: wbinfo -a user%password responds with:

plaintext password authentication succeeded
challenge/response password authentication succeeded


Groeten,

Joost Kraaijeveld
Askesis B.V.
Molukkenstraat 14
6524NB Nijmegen
tel: 024-3888063 / 06-51855277
fax: 024-3608416
e-mail: J.Kraaijeveld@Askesis.nl
web: www.askesis.nl

Joost Kraaijeveld wrote:
>>After functioning correctly for more than 6 months suddenly
>>Samba died : the users and usergroups are not recognized
>>anymore. Restarting the Windows 2000 ADS (mixed mode) server
>>and/or the Debian Samba server does not help. I even re-added the
>>server to the domain: 
>>
>>net rpc join -U Administrator reports a sucessful join.
>>Active Directory shows the Debian server's computer account wbinfo
-t
>>reports sucess wbinfo -g reports BuiltIn groups only
>>wbinfo -u reports ""Error looking up domain users"
Try to:

- stop winbindd
- remove the winbindd_cache.tdb file
- start winbindd again.

If it doesn't help:
- what samba version are you running?
- what errors do you see in the log.winbindd and log.wb* log files?


-TL