DNS server unavailable to the network

I am having the most baffling problem with one of my domain controllers.  Windows Server 2008 Enterprise.

I has been working with out incident for two years.  Then with little warning it fell off the network and refuses connection with any computer except for our main file server and the back up server.  Those two devices information flows unimpeded.  All other devices, including the other DNS simply time out. 

I have tried the following:

ipconfig/flushdns

ipconfig/registerdns

located the entry for reverse dns

ensured that the ipv6 box was not cheched in the network properties

turned on and off the firewall

The cmputer can RESOLVE local computer address, just will time out.  It cant even ping the gateway.  It will not ping or connect EVEN using IP addresses.

NS lookup from the broke DNS gives:

Server:  UnKnown
Address:  204.85.36.31

Name:    galvatron.bwfund.org
Address:  204.85.36.31

ipconfig/all gives:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Galvatron
   Primary Dns Suffix  . . . . . . . : bwfund.org
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : bwfund.org

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM5709C NetXtreme II GigE (NDIS VBD Client)
   Physical Address. . . . . . . . . : F0-4D-A2-06-A1-A8
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 204.85.36.31(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 204.85.36.254
   DNS Servers . . . . . . . . . . . : 204.85.36.31
                                       204.85.36.16
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 8:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : isatap.{F44BE425-4FE8-4A36-ADCF-9CDDB8CB5583}
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 02-00-54-55-4E-01
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : 6TO4 Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2002:cc55:241f::cc55:241f(Preferred)
   Default Gateway . . . . . . . . . :
   DNS Servers . . . . . . . . . . . : 204.85.36.31
                                       204.85.36.16
   NetBIOS over Tcpip. . . . . . . . : Disabled

Any help would be very appreciated.  I am spinning my wheels now.

Thanks in advance.

Wemdell Jones