How to Fix DNS Server Not Responding Error – 10 Methods

When you want to visit a website, your browser will look up the Domain Name System (DNS) to find its IP address. Sometimes, for one reason or another, the browser can’t reach the DNS server of the website you’re trying to access. Instead, you get the annoying DNS Server Not Responding error. There’s no need to panic, though – it’s a fairly common error that happens on both Windows and macOS. In this article, we’ll walk you through the steps to solve it.

What does DNS Server Not Responding mean?

The DNS Server Not Responding error message means that the DNS of the domain you want to reach is unavailable or your browser cannot connect to the internet. Possible fixes include restarting your router or modem, checking for network issues, and updating your browser.

Common causes of DNS issues

There are several possible causes that prevent your browser from establishing a proper connection with the DNS server:

Hardware and software issues. A malfunctioning router, incorrect network settings, outdated adapter drivers, and firewall software can cause network connectivity issues.
Incorrect or missing DNS records. Your browser is unable to find the correct IP address due to an outdated DNS cache.
The DNS server might be unavailable. The DNS service stops working because of traffic overload or server outage.

The good news is – solving a DNS failure is generally quick and easy.

10 methods to fix the DNS Server Not Responding error

Here’s how to fix the DNS Server Not Responding error on Windows and macOS:

1. Use a different browser

Let’s start with the easiest solution. Use a different web browser to visit the site you’re having trouble with, and see if the error disappears. If this method works, then your default browser is the one causing the error. In most cases, clearing the browser cache and updating it to the latest version will solve network connection issues.

2. Troubleshoot network issues

DNS errors are often caused by connectivity issues. Try switching between different networks to check whether your internet connection is the problem. You can run network diagnostics on your computer to detect and fix internet connection problems.

3. Disable unused connections

Another way to fix network issues is to disable connections you don’t use. These include a virtual network like a VPN and a wired adapter like an Ethernet connection.

4. Restart your internet router

A faulty router or modem is also a leading cause of why the DNS server isn’t responding and the connection failing. Luckily, fixing this issue can be as simple as restarting your router or modem.

5. Flush the DNS cache

Every time you visit a website, your computer stores its DNS records – domain name and the corresponding IP address – in a temporary storage called a cache. So, the next time you want to access the same page, your browser can retrieve the content much faster. The problem happens when the DNS cache becomes outdated. Maybe the site has changed its IP address, or the domain has expired. Whatever the reason, incorrect DNS records will result in DNS errors.

6. Change your DNS server address

By default, your home network obtains a DNS server address from your internet service provider (ISP). And what happens when the default DNS server is down? That’s right – your internet service will stop working, too. You can temporarily solve this problem by switching to public DNS server addresses.

7. Disable Internet Protocol version 6 (IPv6)

Internet Protocol (IP) enables data to travel across the web. It’s the technology that allows your device to access websites and other online resources. There are two types of IP addresses: IPv4 and IPv6. The problem: not all websites and DNS servers have fully adopted IPv6.

8. Restart your PC in safe mode

Still getting DNS server errors even after fixing your internet connection and using public DNS servers? Maybe the problem lies within your operating system. Sometimes, certain software, files, or network drivers might block DNS connections.

9. Turn off antivirus and firewall

Antivirus and firewall apps protect your device against online security threats. But these tools can also interfere with your internet connection. Try disabling them to see if they’re causing the issue.

10. Update your network adapter driver (Windows)

Network adapter drivers are programs that connect your Windows PC to other devices, such as routers, printers, and Ethernet cables. When a driver is outdated or corrupted, it won’t be able to communicate with the network adapter, leading to connectivity issues.

Conclusion

DNS Server Not Responding is a common error that occurs when your browser is unable to connect to the internet. It’s mostly caused by issues on your end, such as internet connection problems or an outdated DNS cache. But sometimes, the problem might originate from the DNS server itself. Fixing this issue can be as simple as updating your browser, running network diagnostics, and restarting your router or PC. However, there are occasions when you need to flush the DNS cache, switch to a public DNS server, update network adapter drivers, and disable unused connections and programs. Which method worked for you? Do you have any other tips to solve DNS errors? Don’t hesitate to leave a comment below!

DNS server isn’t responding FAQ

What causes DNS issues?

A DNS failure happens when your browser can’t connect to the DNS server of the site you’re trying to access. It’s often caused by network connectivity issues, hardware or software problems within your computer, outdated DNS records, and DNS server errors.

How to fix DNS Server Not Responding on Windows 10?

You can try troubleshooting network issues, restarting your router, flushing the DNS cache, switching to a public DNS server, restarting your PC in safe mode, turning off antivirus and firewall software temporarily, and updating network adapter drivers.

How can I reset my DNS server?

On Windows, open the Command Prompt app, type ipconfig /flushdns, press enter, and restart your computer. On macOS Big Sur or later versions, type sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder in the Terminal app, enter your admin password, press enter, and restart your computer.

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