New W2K3 Server And Hanging Network

I have 2 new W2K3 server installs with AD and DNS (with
forwarder for internet) and most of the time things are
good. However, a few times each day, the entire network
will freeze and I can't pinpoint the source. DHCP is
running, but all clients are statically assinged IP's
with DNS pointing to the server. Both servers are DC's.
Any ideas about where to go from here?

Thanks,
Bob

When you say the entire network freezes what
exactly do you mean e.g., the clients cannot access
the internet or servers?

"Bob" <(E-Mail Removed)> wrote in message
> I have 2 new W2K3 server installs with AD and DNS (with
> forwarder for internet) and most of the time things are
> good. However, a few times each day, the entire network
> will freeze and I can't pinpoint the source. DHCP is
> running, but all clients are statically assinged IP's
> with DNS pointing to the server. Both servers are DC's.
> Any ideas about where to go from here?