This page shows how to change the DNS settings on the Actiontec C1000A CenturyLink router.
When you connect a router to the Internet it gets a few settings from your ISP automatically. One of the settings that the ISP sets in your router is the DNS setting. DNS stands for Domain Name System and it is used to convert Internet names into actual IP addresses. For instance, when you go to "google.com", your are really connecting to an IP address that is mapped through DNS to a number such as:
This mapping happens automatically every time you visit any page on the Internet.
Some ISPs choose to abuse the DNS system and map unknown names to servers that they control. This can be done in a way that you don't know it is happening since your router is getting its DNS settings from your ISP. For instance, if you have one of these ISPs who is hijacking your DNS, and you try to surf the web to "some-random-site.com" and "some-random-site.com" does not exist, you might get a page back from your ISP with local advertisements on it.
By changing your DNS setting in your router you will effectively change the DNS setting for every computer on your network. This is because when a device is connected to your network your router automatically hands out its own DNS settings to that device. This way you can protect your entire network from ISP hijacking with just one setting.
When you change the DNS settings in your router, you usually have to enter a Primary and a Secondary setting. The secondary is only used if the primary can not be located. Here are common settings:
If you want to use Google Public DNS, use the following settings:
If you want to use OpenDNS, use the following settings:
To get started configuring the Actiontec C1000A CenturyLink DNS page you need to login to your router. If you are already logged in you can skip this step.
To login to the Actiontec C1000A CenturyLink, follow our Actiontec C1000A CenturyLink Login Guide.
If you followed our login guide above then you should see this screen.
You begin on the Connection Status page of the Actiontec C1000A CenturyLink. To change the Domain Name System settings, click the choice at the top labeled Advanced Setup. Then on the left side of the page you see a new list of choices. From this list, pick the one titled DHCP Settings.
This page is the correct one. First, scroll down until you see the heading 5. Set DNS servers allocated with DHCP requests.
Under this heading is the words DHCP DNS Type, choose the radio dot labeled Custom Servers.
Two boxes should now appear, in the first one enter the primary address of the DNS server you have chosen. In the second box, enter the secondary address of that same DNS server. If there are any other boxes, leave them blank, there is only a need for two DNS server addresses.
When you have finished these changes, click the Apply button at the bottom of the page.
Most devices on your network will not begin using the new DNS settings until they have been rebooted. After rebooting a device you can go to it's network settings and verify that it is using the DNS servers that you specified.
Don't forget about our other Actiontec C1000A CenturyLink info that you might be interested in.