First, before you demote it, did you transfer FSMO to other DCs? If not,
please now try to seize FSMO to other DCs.
324801 How to view and transfer FSMO roles in Windows Server 2003
255504 Using Ntdsutil.exe to transfer or seize FSMO roles to a domain
Second, since you demoted the DC, I suggest you let other DCs to hold the
DNS role if the DNS is stored in AD.
Third, I'm not sure what is the exact event of "not connected to the zone",
please let me know in detail.
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>>Date: Mon, 11 Dec 2006 16:58:11 -0500
>>From: Jim Helfer
>>User-Agent: Thunderbird 18.104.22.168 (Windows/20061025)
>>Subject: DNS/AD problems after demoting first server in AD
>>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>NNTP-Posting-Host: wtwarch.com 22.214.171.124
>>Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.win2000.dns:64
>> I had to demote a server that was a GC, DC and a DNS server. I didn't
>>see any errors on this process, but it's seemed to have some ugly side
>>effects on the network. First of all, the demoted server remains a
>>member server and a DNS server, but is not connected to the zone. (and
>>there are events that tell me it tried but couldn't).
>> But, several important-looking records in the other DNS server still
>>apear to reference the demoted, dns-disconnected server, such as:
>>ForwardLookupZpne/_msdc: NS - Name Server
>>ForwardLookupZone/_msdc/_tcp : SRV - Service Location
>>ForwardLookupZpne/_msdc/_gc: A - Host
>> Similar for wtwarch.com
>> I know this is wrong, but I'm not sure what to do. Manually delete the
>>records? reconnect the demoted servers DNS? Remove DNS from the demoted
>> Jim Helfer