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How to change the DNS settings on a Dlink Airspot DSA-3100 router

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Setup Router Staff
(Last Updated: ) | Reading Time: 5 minutes

This page shows how to change the DNS settings on the Dlink Airspot DSA-3100 router.

Other Dlink Airspot DSA-3100 Guides

This is the dns guide for the Dlink Airspot DSA-3100. We also have the following guides for the same router:

What is the DNS setting on a Router

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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:

  • 173.194.33.73

This mapping happens automatically every time you visit any page on the Internet.

Why Change Your Router's DNS Setting

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.

What Should I Change My DNS To

There are 2 really great DNS servers on the Internet that you can choose from right now: Google Public DNS and OpenDNS. If you are not sure which one to pick then just use Google Public DNS.

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:

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If you want to use Google Public DNS, use the following settings:

  • Primary: 8.8.8.8
  • Secondary: 8.8.4.4

If you want to use OpenDNS, use the following settings:

  • 208.67.222.222
  • 208.67.220.220

Login To The Dlink Airspot DSA-3100

To get started configuring the Dlink Airspot DSA-3100 DNS page you need to login to your router. If you are already logged in you can skip this step.

To login to the Dlink Airspot DSA-3100, follow our Dlink Airspot DSA-3100 Login Guide.

Change the DNS settings on a Dlink Airspot DSA-3100

If you followed our login guide above then you should see this screen.

router setup
This is the setup page from your Dlink Airspot DSA-3100 router.

For this Router you begin on the Home page. This particular router has three pages that need DNS Server information filled in. We recommend setting all of these pages. The first is the DHCP page, which is the only one most routers have.

To get to the first page, click the button in the left side bar labeled Private Network.

Configure the DNS section of your Dlink Airspot DSA-3100

router setup
This is the setup page from your Dlink Airspot DSA-3100 router.

This is the Interface Configuration - Private LAN page.

In the section labeled DHCP Configuration, locate the box labeled Primary DNS server and enter the primary address of the DNS Server. The box labeled Secondary DNS server enter the secondary address of the DNS Server. Lastly, for this page, click the green Apply button.

Next, click the button in the left side bar labeled Public Network.

subManu subModel router
This is the general page from your Dlink Airspot DSA-3100 router.

This takes you to a page that looks almost exactly like the previous one, But this one is labeled Interface Configuration - Public LAN.

Once more in the DHCP Configuration section, enter the primary address of that same DNS Server you used on the other page in the box labeled Primary DNS Server. Below that, in the box labeled Secondary DNS Server enter the same secondary address. Finish by clicking the green Apply button in the lower right corner of the screen.

To get the the last page click the choice in the left side bar labeled System.

subManu subModel router
This is the general page from your Dlink Airspot DSA-3100 router.

There is a chance that you will find these DNS Server settings automatically filled in, if not, in the section labeled DNS Server and in the box labeled Primary DNS Server type in the primary address of the DNS Server you wish to use. In the box labeled Secondary DNS Server, enter the same DNS Server address you have been entering in for the secondary address.

Click the green Apply button and you are finished!

Possible Problems when Changing your DNS settings

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.

Other Dlink Airspot DSA-3100 Info

Don't forget about our other Dlink Airspot DSA-3100 info that you might be interested in.

This is the dns guide for the Dlink Airspot DSA-3100. We also have the following guides for the same router: