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SURFboard Central: DNS Setup

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Question

How do I setup the Gateway to have a custom DNS?

Answer

NOTE: This article applies to the SURFboard Wi-Fi Cable Modems (G18, G20, G34, G36, G54).

DNS Setup Domain Name Server (DNS) is a database that contains domain host names (e.g. http://www.surfboard.com) which are linked to a specific IP address. When accessing a website by domain name like www.surfboard.com, the DNS retrieves the IP address to access the website. DNS makes it possible to access the websites by domain names.

The DNS settings can be customized when using public DNS or installing private DNS in a home network. This document describes how to setup custom DNS addresses.

CAUTION: By default, the Gateway obtains DNS addresses automatically from the service provider. Internet connection may be lost if the DNS addresses inputted in the app are invalid.

Custom DNS Setup

Tap the My Network icon at the bottom of the screen.
Tap the Network Management box.
Tap the Network Settings + button to expand the card, then tap the WAN Settings link.
Tap the DNS Configuration link, then tap the Static radio button.
On the Alert pop-up box, tap the OK button.
Enter the alternative primary DNS address into the Primary DNS field.
Enter the alternative secondary DNS address into the Secondary DNS field.
Tap the Save Changes button.
On the Alert pop-up box, tap the OK button.
On the DNS Configuration save successfully pop-box, tap the OK button. The Gateway will reboot.

NOTE 1: Wi-Fi clients in the network will lose wireless connection. If the Wi-Fi clients do not reconnect when the Gateway is back online manually reconnect them in the Wi-Fi setting of the device.

NOTE 2: To revert back to using the Service Provider DNS addresses, tap the Automatic radio button. Repeat steps 8 - 10.