There are some knowledgebase articles on how to delete the root zone.
First is to use the DNS mmc if you can.
If not, have a look in Active Directory. Open ADUC, Select View | Advanced
Features. Go to System\MicrosoftDNS. Delete the "." zone in there,
Hope that helps,
Anthony
http://www.airdesk.com
"St.Liu" <> wrote in message
news:...
> yes ,it referring to the Root zone ".", but I can't find there have this
> zone.
>
> "Anthony [MVP]" <> дÈëÏûÏ¢
> news:...
>> St.Liu,
>> for 3) what is the exact text? Is it referring to the Root zone (".")? If
>> so, delete it
>> Hope that helps,
>> Anthony.
>> http://www.airdesk.com
>>
>>
>> "St.Liu" <> wrote in message
>> news:...
>>> 1) Windows 2003 sp2
>>> 2) I install the new server and transfer the fsmo to the new server.
>>> 3)ID 4521 It means
>>> When DNS server try to load zone from AD . it have an error 9002.
>>> DNS
>>> server will try to reload this zone in the next time. this may cause by
>>> AD
>>> load higher, and it maybe the temp situation.
>>>
>>> The other message ID means this warning produce too much(or very
>>> quickly).
>>>
>>> "Anthony [MVP]" <> дÈëÏûÏ¢
>>> news:...
>>>> 1) What OS?
>>>> 2) How did you change the DC?
>>>> 3) What is the text (in English) of the error message?
>>>>
>>>> Anthony,
>>>> http://www.airdesk.com
>>>>
>>>>
>>>> "Eviltonight" <> wrote in message
>>>> news:#...
>>>>> I have an AD with DNS integrated. Last week I changed my dc to an new
>>>>> server, but the DNS Server have occurred warning very often. The error
>>>>> ID
>>>>> is almost the same, 4521. Because my system is using chinese, So the
>>>>> message is not attached.
>>>>>
>>>>> Any suggest will be helpful!
>>>>>
>>>
>>>