2008 R2 Member Server and 2003 DC - Netlogon 5719 and 5783 on 2008 R2 member servers

Dear Experts,
Here's the scenario:
5 DCs in one site all 2003 DCs
10 member servers 2008 R2 that are occassionally reporting netlogon 5719 and 5783 netlogon errors.
What could be the issues leading to this?
EVENT ID: 5719
This computer was not able to set up a secure session with a domain controller in domain CORP due to the following:

There are currently no logon servers available to service the logon request.

This may lead to authentication problems. Make sure that this computer is connected to the network. If the problem persists, please contact your domain administrator.  

EVENT ID:  5783
The session setup to the Windows NT or Windows 2000 Domain Controller \DC08.FTS.ADS.FOXTV.COM for the domain CORP is not responsive.  The current RPC call from Netlogon on \SERVER02 to \DC08.FTS.ADS.FOXTV.COM has been cancelled.'
Thank you!
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Darius GhassemCommented:
Most of the time the issue is with DNS.

Make sure all member servers and domain controllers only point to DCs for DNS in their TCP\IP settings.

Make sure you have any secondary network cards disabled

On Windows 2008 Servers make sure IPv4 is listed first in binding order http://theregime.wordpress.com/2008/03/04/how-to-setview-the-nic-bind-order-in-windows/

Run dcdiag post results.
There are are problem with the DNS Settings

Kindly perform the Dcdiag and netdiag on the server listed on the event and check if you find any errors.
mmoyaAuthor Commented:
@dariusq and barane - our domain controllers are all DNS servers but do not point to itself. We have two main DNS servers that they point to. This is how it's setup in this environment. Could that be it?

I changed the binding orders in the advanced TCP/IP settings on our 2008 R2 members servers and will seee if that will solve the issue...
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Darius GhassemCommented:
DC should point to themselves.

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mmoyaAuthor Commented:
DC is pointing to a proxy DNS server and it sends the connection right back to itself. Do you think that's the issue in here? Thanks again.
Darius GhassemCommented:
Could be
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Windows Server 2008

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