How Do I Fix My Primary DNS Server Windows 10?


Angela Bailey

If you’re experiencing issues with your primary DNS server on Windows 10, don’t worry! This guide will walk you through the steps to fix this problem and get your internet connection back up and running smoothly.

What is a DNS Server?

Before we dive into the troubleshooting steps, let’s quickly understand what a DNS server is. DNS stands for Domain Name System, and it acts as a directory for the internet. When you type a website address into your browser, the DNS server translates that address into an IP address, allowing your computer to connect to the website’s server.

Why Do I Need to Fix My Primary DNS Server?

If your primary DNS server is not working correctly, it can cause issues with your internet connection. You may experience slow loading times, unable to access certain websites, or even complete loss of internet connectivity.

Troubleshooting Steps:

Step 1: Restart Your Router

This might sound like a simple solution, but sometimes restarting your router can help resolve connectivity issues. To do this:

  • Unplug the power cable from your router and wait for about 30 seconds.
  • Plug the power cable back in and wait for the router to restart. This may take a couple of minutes.
  • Check if the issue is resolved by accessing websites in your browser.

Step 2: Flush DNS Cache

Your computer stores information about websites you’ve visited in its DNS cache. Sometimes clearing this cache can help resolve DNS-related problems.

Here’s how to do it:

  1. Open the Command Prompt by typing “cmd” into the Windows search bar and selecting “Command Prompt. “
  2. Type the command “ipconfig /flushdns” and press Enter.
  3. Wait for the confirmation message that the DNS cache has been successfully flushed.
  4. Restart your computer.

Step 3: Change Your DNS Server Address

If restarting your router and flushing the DNS cache didn’t work, you can try manually changing your DNS server address. Here’s how:

  1. Open the Control Panel by typing “Control Panel” into the Windows search bar and selecting it from the results.
  2. Select “Network and Internet,” then click on “Network and Sharing Center.

  3. Select your network connection (Wi-Fi or Ethernet) and click on “Properties“.
  4. Select “Internet Protocol Version 4 (TCP/IPv4)” from the list, then click on “Properties“.
  5. In the new window, select “Use the following DNS server addresses:” and enter a preferred and alternate DNS server address. You can use Google’s public DNS servers by entering “8.8.8” as the preferred DNS server and “8.4.4” as the alternate DNS server.
  6. Click “OK” to save the changes.


If you’ve followed all the troubleshooting steps and still can’t fix your primary DNS server issue on Windows 10, it may be worth contacting your internet service provider for further assistance. They will be able to help diagnose and resolve any underlying network issues that are causing the problem.

I hope this guide has helped you fix your primary DNS server on Windows 10 and get back to enjoying a seamless internet browsing experience!

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