Could not find domain controller for this domain - Establishing NT 4.0 - 2003 Trust

I'm trying to create a trust relationship between a Windows NT 4.0 domain and an AD Domain running on 2003 R2. The user manager tells me that it "Could not find domain controller for this domain". I've already added the lmhosts file and edited the restrictedanonmyous reg key.

Any ideas?
phadavidAsked:
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oBdAConnect With a Mentor Commented:
A trust between relies exclusively on NetBIOS. Make sure NetBIOS over TCP/IP is enabled on the W2k3 DC.
Then you'll need inter-domain NetBIOS name resolution as well.
Yes, it can be done using lmhosts (on all DCs involved), but that requires a specially formatted lmhosts for the necesasry 1B entry.
How to Write an LMHOSTS File for Domain Validation and Other Name Resolution Issues
http://support.microsoft.com/?kbid=314108

It's easiest to do if both domains are using either the same WINS server, or if there are WINS servers in both domains with replication setup between them.
How to establish trusts with a Windows NT-based domain in Windows Server 2003
http://support.microsoft.com/?kbid=325874
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Freya28Commented:
try this and you should be good

http://support.microsoft.com/kb/178640
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za_mkhConnect With a Mentor Commented:
When you say you added the LMHosts entries I am assuming you wrote them using the #PRE #DOM options for those entries. Be aware that sometimes that file is very sensitive, so ensure that you use TABS for the next column, etc.

To verify if those settings are loaded onto the computer, you can do a nbtstat -R and nbtstat -c to see if the entries are loaded. The -R is case sensitive.
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phadavidAuthor Commented:
Already did the reg edit.

Also verified the lmhost entries
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phadavidAuthor Commented:
I enabled NetBIOS over TCP/IP on the Windows Server 2003 BOX running as a DC.
I am able to ping successfully to and from both DC's using ip addresses and dns names.
net view [2003DC] results in "System error 5" - Access is denied
net view [NTDC] results in "System error 1788"
 
They are both using the same WINS server.

[NTDC] is still unable to find domain.
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phadavidAuthor Commented:
Ended up using a net use command on the NT DC, then establishing trust. A restart later, it did the trick. Thanks to everyone who helped!
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