[Samba] A domain controller for the domain could not be contacted (2.2.3a-12.3 for Debian)

[Fabien Chevalier]

>     The error was: "DNS name does not exist."
>     (error code 0x0000232B RCODE_NAME_ERROR)
>     The query was for the SRV record for
> _ldap._tcp.dc._msdcs.HAWAR3 Common causes of this error
> include the following: - The DNS SRV record is not registered
> in DNS.

It seems your workstation tries to locate the DC by doing a dns query, what is not currently supported by Samba.
What is your workstation node type set to?

Regards,

Fabien Chevalier