|Is this in a home environment behind a SOHO Router?|
If so, are you having issues with any other DHCP devices connected to the LAN?
If it is indeed in your home, rather than using the IP of name servers out on the internet, use the same one the rest of your DHCP clients are using. In a typical home environment your SOHO router will have something like the following TCP/IP settings:
LAN IP: 192.168.0.1
Subnet Mask: 255.255.255.0
All DHCP clients should show both the Default Gateway and the DNS IP's as being the LAN IP of the SOHO router (in this example: 192.168.0.1)
Then the router forwards DNS queries from clients to your ISP's DNS servers.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.