DHCP error 7023 and 1004, access denied

AE_JB
AE_JB used Ask the Experts™
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Installed windows updates recently and now DHCP shuts down with errors 7023 and 1004.  Is this a known issue?  How to resolve it?  Some clients can access internet and resources, some cannot.
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Senior Active Directory Engineer
Top Expert 2012
Commented:
Your DHCP database is probably corrupted that why you have 1004 error and you cannot access it, that's why you have 7023 error

Follow this MS article to solve it
http://technet.microsoft.com/en-us/library/cc726910%28v=ws.10%29.aspx

just in case, enable IP conflict detection attempt to 2-3 before you will proceed
http://technet.microsoft.com/library/Cc958918

Regards,
Krzysztof

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Commented:
The article is for server 2008, does it apply to 2003 as well?
Krzysztof PytkoSenior Active Directory Engineer
Top Expert 2012
Commented:
Yes it is but in 2003 path to the new and empty database is a little bit different :)
It is %SystemRoot%\system32\dhcp\backup\new\dhcp.mdb

the rest is exactly the same

Krzysztof

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