Hi there. Try the following DNS Servers then: Primary -> 196.25.255.250, Secondary -> 196.25.253.13. Don't forget to do the "ipconfig /flushdns" command in windows after changing your DNS servers to be sure. Keep well.
I simply stuck the ns addresses in the router config on my "Mega 200VWR" and disabled "Obtain DNS automatically". Then I saved the config to flash and restarted the router.