Disclaimer:
Due to the wide variety of devices available and potential variations in their firmware, the information presented below may or may not be accurate. For this same reason, OpenDNS support will generally not be able to provide device-specific assistance beyond what is provided below. If you need further assistance specific to your device, please contact either the manufacturer's support team, or your ISP if you are using leased equipment.
Below is the configuration for TP-Link TD-W8951ND, but may apply to other TP-Link devices.
1. Login at http://192.168.1.1/
2. Go to Interface Setup, then choose LAN
3. Select the following settings:
DNS Relay: Use User Discovered DNS Server Only
Primary DNS Server: 208.67.222.222
Secondary DNS Server: 208.67.220.220
4. At this point, we recommend that you flush your DNS resolver cache and web browser caches to ensure that your new DNS configuration settings take immediate effect.