DNS Trouble

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Hello,

About six months ago my Windows 2000 DC died. I got a new server and
upgraded to Server 2K3. Since then everything seems to function properly on
the network aside from a couple things that I think are all related. Please
bear in mind that this is a small organization so I've had to make my DC do
multiple things.

Here are the symptoms:

1. When going to check email (EX2K) Outlook will ask for the user ID,
password and domain even after having opened their email 30 minutes ago
without incident. After a release/renew of the IP it works just fine.

2. We have two finance applications that will for some reason hang up and
create huge problems with accuracy in the accounting transactions. We have
ruled out all hardware on the machines and the software is correctly
configured.

3.I've been getting an error in my DNS Event Viewer (message is posted below).

-----------------------------------------------------------------------
Event Type: Error
Event Source: DNS
Event Category: None
Event ID: 4015
Date: 7/14/2005
Time: 7:48:37 AM
User: N/A
Computer: ******
Description:
The DNS server has encountered a critical error from the Active Directory.
Check that the Active Directory is functioning properly. The extended error
debug information (which may be empty) is "0000218D: SvcErr: DSID-031B063D,
problem 5002 (UNAVAILABLE), data 0". The event data contains the error.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 34 00 00 00 4...
------------------------------------------------------------------

This error is reoccurring in the event viewer every few minutes.

4. I ran a netdiag /fix to see if I could resolve anything that way and it
didn't help. I also ran a dcdiag and that had said that it fails while doing
a CrossRefValidation and it fails the DNS test.

5. it takes an inordinate amount of time to log on. It gets to “Applying
Computer Policies” and sits and waits until, presumably, it times out and
lets you in.

Now the lastpart of all this is that when my 2K DC died, I was able to get
it up and running, sort of, long enough to copy the DNS info over and the AD.
Made it real nice not to have to redo all that but now the 2K3 DC is
referencing the old DC name in a couple areas.

Is it possible that my network is still looking to find my old DC to resolve
IP’s and other DNS information to instead of the my new 2K3 DC? If so, what
should I check or how could this be resolved?

Let me know if you need more information. I tried to provide all I could
without it being too much.

Thanks in advance!

.

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