Windows 7 & 2008 R2 domain join error

Eroarea descrisa mai jos am mai vazut-o pomenita pe mai multe forumuri (chiar si pe itboard):

Changing the Primary Domain DNS name of this computer to “” failed. The name will
remain “<DNS domain>.<top level domain>”.
The error was:
The specified server cannot perform the required operation.

E descrisa aici: http://support.microsoft.com/kb/2018583

Si chiar ma miram cum de nu am intalnit-o si eu. Eh, pana la urma am dat si eu de ea zilele astea dar cum stiam de ea nu mi-am facut probleme.

Citind mai cu atentie KB-ul am descoperit si cauza:

The error described in the symptoms section occurs because a function in the domain join UI improperly performs an LDAP bind to a Domain Controller in the target domain by its short name, which fails in the following conditions:

1. The “Disable NetBIOS over TCP/IP” checkbox has been disabled in the IPv4 properties of the computer being joined
   OR
2. Connectivity over UDP port 137 is blocked between client and the helper DC servicing the join operation in the target domain
   OR
3. The TCP/IPv4 protocol has been disabled so that the client being joined or the DC in the destination domain targeted by the LDAP BIND is running TCP/IPv6 only.

Iar in cazul meu nu se aplica nici una din variantele de mai sus. Pur si simplu serverul pe care vroiam sa-l joinez la domeniu era in alt subnet.

Probabil ca daca setam inainte primary dns sufix-ul sistemului sa fie acelasi cu numele domeniului nu as mai fi primit eroarea insa nu am mai incercat.

Banuiesc ca odata cu SP1 eroarea asta va fi de domeniul trecutului.