How to Clear Chrome Net Internals DNS Error?

When browsing the internet, encountering a DNS error in Google Chrome can be frustrating. These errors often result from issues with Chrome’s DNS cache, network configurations, or corrupted browser data. Fortunately, resolving such errors is straightforward. This blog provides a detailed step-by-step guide to clearing Chrome’s DNS error using the chrome://net-internals tool, along with other troubleshooting techniques.

What is a DNS Error in Chrome?

DNS (Domain Name System) translates domain names into IP addresses so that browsers can connect to websites. A DNS error typically indicates that the browser could not resolve the domain name to its corresponding IP address, resulting in pages not loading. Common causes include:

• Cached DNS entries.
• Network configuration errors.
• Expired or incorrect DNS records.

Steps to Clear Chrome Net Internals DNS Error

Google Chrome offers a built-in tool called chrome://net-internals, which allows users to manage network-related configurations, including DNS. Follow these steps to resolve DNS errors:

1. Access Chrome’s Net Internals Page

The net-internals page is a hidden feature in Chrome where you can manage network settings.

• Open Google Chrome.
• In the address bar, type chrome://net-internals and press Enter.

This will open the Net Internals dashboard, where you can see network diagnostic tools and logs.

2. Clear the DNS Cache

Once you are in the Net Internals page, follow these steps to clear the DNS cache:

• From the left-hand menu or dropdown, select DNS.
• Click the Clear host cache button.

This action clears all DNS entries cached by Chrome. Cached entries can sometimes become outdated or corrupted, leading to DNS errors.

3. Flush Sockets

After clearing the DNS cache, it’s essential to flush Chrome’s sockets to ensure the browser doesn’t use old or invalid connections.

• In the net-internals page, switch to Sockets (if it’s visible in the menu).
• Click Flush socket pools.

This step closes all active connections, forcing Chrome to establish new ones when accessing websites.

4. Restart Chrome

To ensure all changes take effect, restart Google Chrome:

• Close the browser completely.
• Open Chrome again and try reloading the website.

Additional Troubleshooting Steps for DNS Errors

If clearing the DNS cache using chrome://net-internals doesn’t resolve the issue, try these additional methods:

1. Clear System DNS Cache

The DNS cache is not limited to Chrome; your operating system also stores DNS records. Clearing the system DNS cache can help:

Windows:

Open the Command Prompt (Run as Administrator).

Type the command:

bash
ipconfig /flushdns

Press Enter. You will see a confirmation message indicating that the DNS Resolver Cache was successfully flushed.

macOS:

Open Terminal.

Enter the following command:
bash
sudo dscacheutil -flushcache

Enter your password when prompted.

Linux:

Open Terminal.

Restart the DNS service by typing:
bash
sudo systemd-resolve –flush-caches

2. Reset Network Settings

Network misconfigurations can also lead to DNS errors. Resetting network settings may resolve the issue.

Windows:

Open Command Prompt (Admin).

Run the following commands one by one:
bash
netsh winsock reset

netsh int ip reset

Restart your computer.

macOS:

• • Go to System Preferences > Network > Advanced.
  • Remove and re-add your current network configuration.

3. Change DNS Servers

Sometimes, the DNS server provided by your ISP may cause problems. Switching to a public DNS can resolve the issue.

1. Go to your network settings.
2. Change the DNS servers to one of the following:
   • Google DNS:
     • Primary: 8.8.8.8
     • Secondary: 8.8.4.4
   • Cloudflare DNS:
     • Primary: 1.1.1.1
     • Secondary: 1.0.0.1

Save the settings and restart your connection.

4. Clear Browser Cache and Cookies

Corrupted browser data can also cause DNS errors. To clear Chrome’s cache and cookies:

• Go to Settings > Privacy and security > Clear browsing data.
• Select Cookies and other site data and Cached images and files.
• Click Clear data.

5. Check Firewall or Antivirus Settings

Overprotective firewalls or antivirus software can block DNS requests. Temporarily disable these and test if the issue persists. If the problem is resolved, whitelist Chrome in your firewall or antivirus settings.

6. Verify Internet Connection

Ensure your internet connection is stable. Reboot your router or modem and reconnect to the network.

Preventing DNS Errors in the Future

To minimize the chances of encountering DNS errors in Chrome, consider these tips:

1. Keep Chrome Updated: Regular updates fix bugs and enhance network stability.
2. Use Reliable DNS Services: Opt for public DNS services like Google DNS or Cloudflare DNS for faster and more reliable DNS resolution.
3. Regularly Clear DNS Cache: Periodically clear your DNS cache to prevent outdated or corrupted entries.
4. Monitor Network Health: Check your network and internet connection for stability issues.

Conclusion

DNS errors in Chrome can disrupt your browsing experience but are relatively easy to fix using the built-in chrome://net-internals tool. By clearing the DNS cache, flushing sockets, and performing additional troubleshooting steps, you can quickly resolve these errors. Regular maintenance of your browser and network settings can prevent future occurrences.

If the problem persists despite following these steps, it may be due to server-side issues or deeper network misconfigurations. In such cases, contacting your ISP or a network administrator can help.

With this comprehensive guide, you should now be equipped to tackle DNS errors confidently and ensure a smooth browsing experience.