NOTE:Â This article applies to the mAX WC4S, WC4T, W21, W121, W122 Express, W30, W130, W31, W133, W61, and the W161 Routers.DNS Setup
Domain Name Server (DNS) is a database that contains domain host names (e.g http://www.SURFboard.com) that 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 websites by domain names.Â
The DNS settings can be customized when using public DNS or installing private DNS in a home network.  This document contains the following sections to set up custom DNS addresses using the SURFboard Central app.Â
Custom IPv4 DNS Setup
Custom IPv6 DNS Setup
CAUTION: By default, the mAX router obtains DNS addresses automatically from the service provider.  Internet connection may be lost if the DNS addresses inputted in the app are invalid. Custom IPv4 DNS Setup
- Tap the My Network icon on 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.Â
 - Tap the DNS Configuration link. On the IPv4 tab 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.Â
 - Enter the alternative secondary DNS address into the Secondary DNS field.
 - Tap the Save Changes button at the bottom of the page.Â
 - On the Alert pop-up box, tap the OK button.
NOTE: To revert back to using Service Provider's DNS addresses, tap the Automatic button. Tap the Save Changes button at the bottom of the page, then tap the OK button on the pop-up Alert box.
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Custom IPv6 DNS Setup
NOTE: The mAX Dash WC4T router does not support IPv6 and the IPv6 tab is greyed out.
- Tap the IPv6Â tab then tap the Static radio button.Â
 - On the Alert pop-up box, tap the OK button.
- Enter the alternative primary DNS address into the Primary DNS field.Â
 - Enter the alternative secondary DNS address into the Secondary DNS field.
 - Tap the Save Changes button at the bottom of the page.Â
 - On the Alert pop-up box, tap the OK button.
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NOTE: To revert back to using Service Provider's DNS addresses, tap the Automatic button. Tap the Save Changes button at the bottom of the page, then tap the OK button on the pop-up Alert box.Â
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