Hey you change the settings here:
1. Login to the Wireless Innatech Router.
2. Go to Setup tab.
3. On the left, Go to WAN. Wan Configuration.
4. You can see the Protocol PPPoE on first table. Hit edit button.
5. Look there for DNS. Change to Manual.
6. Change the primary and secondary DNS address to your preferred address provided either by Google Public DNS or OpenDNS.
7. After changing the primary and secondary DNS address, please click Apply button to have the wireless router acknowledge the changes.
8. Good Luck!