Well, if this is all one subnet,...with no LAN Routers between the Clients
and the DHCP then:
1. It should work
2. Your DC is meaningless and not even related to this at all. Clients
don't get addresses from DNS Servers. It wouldn't have made any difference
if you built a new DC with DNS or not,...it is just not relevant.
So,....since it should work, but it doesn't,..there must be a lot more to
this that you aren't telling us.
What "firewall" is configured to give DHCP? Where is it? You can't enable it
to do DHCP because it becomes a "rouge" DHCP Server on the LAN that will
clash with the exisitng DHCP,....unless you have more than one subnet and
the problem clients are all on one subnet (along with the firewall) and the
real DHCP is on a different subnet,...in which case you should have made
that clear because DHCP is broadcast based and will not cross subnets by
itself.
There just has got to be more to this than you have described.
--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
"JBLaze" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
>
> > Active Directory domain, the DHCP server needs to be "authorized" to
handout
> > addresses. This is to prevent rogue DHCP servers.
>
> The server in question is authorized and activated yet none of the
> clients can get addresses.
>
> I don't know what else to do....
>