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Restored Windows 2008 Domain Controller Cannot Communicate with Parent Domain

Hi,

I have a client with a parent domain and a child domain. The child domain only has a single DC that has been corrupted and is looking like it is unrecoverable (ticket created with Microsoft).

Unfortunately they only have a valid backup from 2 weeks ago, which was restored successfully yesterday evening. We can log onto the child domain successfully, but not onto the parent domain.

Are there any steps that I can run through to help repair the relationship between this child DC and the parent domain?
Active DirectoryWindows Server 2008

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Sandesh Dubey

8/22/2022 - Mon
Member_2_4371340

ASKER
For the clarity of any solutions, let's name the domains as follows:

Parent domain:  ParDom.local
Child Domain:    ChilDom.local
Neil Russell

How did you restore? What sort of backup?

A Back up and restore of a domain controller is generally a total waste of time.

Never have a domain with only one DC.  Your best resolution to a dead DC is always to kill it and build a new one. That of course is far far easier if you have multiple domain controllers in the domain.
Venugopal N

You are not able to login parent domain, from the DC in child domain?
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William Peck
Member_2_4371340

ASKER
@Neilsr

Q: How did you restore? What sort of backup?
A: It was a Veeam backup and restore of the whole virtual machine.

@Venurajav

Q: You are not able to login parent domain, from the DC in child domain?
A: Correct, communication from parent-to-child and child-to-parent domain is failing. I can log on to the child domain.
Darius Ghassem

Run a dcdiag post results
gaurav2rawat

Check the secure connections using nltest check dns records if proper also run dcdiag /q and post the results here
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Neil Russell

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