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No Domain Controller available -strange problem

I have two NT 4.0 domains - DOM1 and DOM2 adn 2 NT SErver PDC's, each on different networks.  DOM1 is 139.257.2.x and DOM2 is 139.257.6.x.
They both trust each other.  Everything has been working fine, a few days ago I noticed all these messages in event log on DOM1- it says:  No Windows NT Domain Controller is available for Domain DOM2. (This event is expected and can be ignored when booting with the NT NEt hardware profile) The following error occured, there are currently no logon servers to service the logon.  Why am I getting this error on DOM1 about another domain.  They are both PDC's and PDC's don't log into each other.  

ANother strange thing is I deleted the trust relationships on DOM1 and DOM2 for each other.  Now I try adding the trusts back for each PDC.  I am able to add trusting domain fine on both, but when I enter trusted domain on each in user manager is won't let me add the other domain as trusted and gives me an error - Unknown password.  

ANy ideas what is wrong.  Could trust connection be bad?
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corpju33
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corpju33
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geoffrynCommented:
Is netbios name resolution working correctly?  Have you changed the IP of either server?  Are you using LMHOSTS on the PDCs?
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corpju33Author Commented:
I just installed METAIP DHCP,DNS services on NT SErver in Domain DOM1, all clients in that domain use DHCP now.  The Nt server in DOM2 is configured as a WINS server, which I guess I dont need anymore.  In wins config in network properties it has itself as WINS server.  Should I add NT server in DOM1 to WINs addresses. Since server in DOM1 has DHCP, DNS services setup, I only should have this on one server?  Should I disable WINS services on server in DOM2?
I am not using LMHOSTS
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geoffrynCommented:
The two servers must have a static way of finding each other via netbios.  You should either configure the LMHOSTS file on both servers to identify both the server and domain on the remote network.
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CleanupPingCommented:
corpju33:
This old question needs to be finalized -- accept an answer, split points, or get a refund.  For information on your options, please click here-> http:/help/closing.jsp#1 
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