Re: DNS addresses changing spontaneously without DHCP query

From: Ace Fekay [MVP] (PleaseSubstituteMyActualFirstName&LastNameHere_at_hotmail.com)
Date: 08/21/04 

Date: Sat, 21 Aug 2004 11:16:23 -0400

In news:ez3VwihhEHA.556@TK2MSFTNGP10.phx.gbl,
Michael A. Covington <look@www.ai.uga.edu.for.information> made a post then
I commented below
> Greetings,
>
> The PCs in our domain are supposed to use our 2 domain controllers as
> their DNS servers. Our campus DHCP server tells them this, at the
> same time it tells them their IP addresses and gateways, whenever
> they boot up or ipconfig /renew.
>
> Recently, we've been coming in and finding that our PCs have reverted
> to using a different set of DNS servers (the campus-wide ones) on
> their own -- without renewing their DHCP lease or (I'm told) querying
> the DHCP server in any way.
>
> My impression was that the DHCP server was sometimes giving out the
> wrong data. But the people who run it deny it. They say something
> in my domain is making the DNS addresses change.
>
> If I do an ipconfig /renew on any afflicted PC, it immediately gets
> the correct DNS addresses from the campus DHCP server.
>
> What gives? What could there be, within our domain, that makes PCs
> change the DNS server addresses that they're using, without
> consulting the DHCP server? Is the domain DNS server itself saying,
> somehow, "I'm not the
> one -- you should use the ones upstream from me"?
>
> Many thanks!

When it changes, can you do an ipconfig /all to find out if it's coming from
a different DHCP server? 

-- 
Regards,
Ace
Please direct all replies ONLY to the Microsoft public newsgroups
so all can benefit.
This posting is provided "AS-IS" with no warranties or guarantees
and confers no rights.
Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services
Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
-- 
=================================

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