I tried configuring OpenDNS with my SBG7600AC2 gateway using the instructions provided. Under LAN settings, I checked the box to manually set the DNS addresses and them provided the primary and secondary DNS addresses for OpenDNS. The device restarted, I gave it plenty of time to take effect, etc. However, the test websites that OpenDNS is supposed to be filtering are not being filtered. My OpenDNS settings were working fine with the gateway that I owned previously (different brand/model).