If you're puzzled by the DNS_PROBE_FINISHED_NXDOMAIN error in your browser, you can consult this article from MiniTool System Booster. It will explain the meaning and causes of this error code and offer several practical solutions.

What Triggers DNS_PROBE_FINISHED_NXDOMAIN?

DNS_PROBE_FINISHED_NXDOMAIN is an error that appears when your web browser fails to find the IP address corresponding to the domain name you're attempting to access. DNS (Domain Name System) assists your computer in converting a website's name like minitool.com into an IP address such as 192.169.1.0 that computers use to communicate on the internet.

The NXDOMAIN portion indicates a non-existent domain, suggesting that the DNS server was unable to locate the domain you were trying to access or that the domain name has either just been registered or is not yet active.

This error can arise due to numerous factors, including:

• Domain-related issues: The domain name is unregistered, suspended, or has expired.
• DNS misconfiguration: Incorrect DNS settings on your device or router.
• Browser cached files: Outdated cookies, corrupted cache, or browsing history in your browsers.
• Network issues: Problems with your internet connection or DNS server.
• Typographical errors in the website’s URL: You might have entered the site address incorrectly into the search bar.

Understanding the error message will help you stay informed and fix the problem quickly. Without further delay, let's explore how to resolve DNS_PROBE_FINISHED_NXDOMAIN in browsers.

Also read: What Is a DNS Attack? How to Prevent It? Solutions Are Here!

How to Resolve DNS_PROBE_FINISHED_NXDOMAIN Error?

Fix 1: Restart Your PC and Router

The simplest way to fix the error is to restart your PC and router/modem. You might encounter the DNS_PROBE_FINISHED_NXDOMAIN error due to outdated data and IP addresses stored in DNS caches.

You should power off the computer and disconnect the router or modem. Wait for 3-5 minutes. Afterward, reconnect it and turn your PC back on. Before visiting the specific website again, ensure everything is functioning correctly, including the URL's spelling.

This step might seem trivial, but it can be effective at times.

Fix 2: Utilize MiniTool System Booster

Both browser cache issues and network connection problems could be the root cause of the DNS resolution error. Is there a way to address these simultaneously? Yes, MiniTool System Booster can help.

The PC optimization program offers numerous advanced features that can enhance your browsing experience by diagnosing network connections, thoroughly clearing Internet junk files, freeing up more memory, and more.

Moreover, it can optimize your computer in various ways, such as hard drive defragmentation, disk space release, response acceleration, and so on. Now, let's demonstrate how to fix the error using this tool.

Step 1. Launch the tool and you can access all the services for free for 15 days.

Step 2. Click on Performance Home and select Deepclean.

Step 3. Click on START CLEAN to clean up your PC thoroughly. This section includes 7 cleanup tasks, which you can run sequentially or skip based on your preferences.

Step 4. To resolve your current issue, run NetBooster to boost and unlock hidden internet speed.

Next, perform Internet Cleanup to eliminate accumulated browsing data and junk files. Click CLEAN SELECTED after scanning.

Fix 3: Release and Renew Your IP Address

This step clears DNS cache deeply and resolves network configuration issues by abandoning your computer's current IP address and requesting a new one. Let me guide you through this process in Windows.

Step 1. In Windows Search, type cmd and run Command Prompt as an administrator.

Step 2. In the Command Prompt window, type the bold commands below and press Enter after each one.

ipconfig /release – releases your current IP address.

inconfig /flushdns – flushes your local DNS cache.

ipconfig /renew – refreshes your IP address.

netsh int ip set dns – resets your previous IP settings.

netsh winsock reset – reinstates the Winsock Catalog.

Once completed, exit Command Prompt and restart your PC. Then check if DNS_PROBE_FINISHED_NXDOMAIN still exists.

Fix 4: Change DNS Server

Your computer typically accesses the DNS server addresses provided by your internet service provider, but they might not be secure or fast. This could result in the DNS server failing to resolve domain names or addresses. In this case, you can consider switching to a public DNS server like Google Public DNS and Cloudflare, which might alleviate some issues. To do so:

Step 1. Enter Control Panel in the search bar and hit Enter.

Step 2. Choose Network and Internet > Network and Sharing Center > Change adapter settings.

Step 3. Right-click on your current network and select Properties.

Step 4. Choose Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6) and click on Properties.

Step 5. Replace Preferred DNS Server with 8.8.8.8 (IPv4) or 2001:4860:4860::8888 (IPv6) and Alternate DNS Server with 8.8.4.4 (IPv4) or 2001:4860:4860::8844 (IPv6).

Step 6. Click on OK to save the changes and reboot the machine to see if the error has disappeared.

If changing the DNS server doesn't work, proceed to the next method.

Fix 5: Disable Your Firewall/Antivirus

A security system can occasionally block certain domains or interfere with DNS resolution. It's advisable to temporarily disable your antivirus software. Follow these steps:

Step 1. Go to Control Panel > select System and Security > Windows Defender Firewall.

Step 2. Click on Turn Windows Defender Firewall on or off in the left sidebar.

Step 3. Check Turn off Windows Defender Firewall (not recommended) for both Private and Public network settings. Then click on OK to apply.

Restart your computer and open the browser to see if the error is resolved. Remember to re-enable your security software afterward.

Fix 6: Inspect Your Local Hosts File

The local hosts file matches domain names with their IP addresses. However, it might mark certain domain names or IP addresses as inaccessible. Checking and editing it can resolve this DNS resolution failure. To do so:

Step 1. Type notepad in the search box and right-click on it to select Run as administrator.

Step 2. Click on File and choose Open. Change *Text Documents (.txt) to All Files > enter C:\Windows\System32\drivers\etc\ > click on Open**.

Step 3. Open the hosts file and you'll see specific domain names and IP addresses under ::1 localhost line.

Step 4. Delete them and save the changes.

Then navigate to check if the error page persists.

Conclusion

How to handle DNS_PROBE_FINISHED_NXDOMAIN in Windows? By now, you might have found the solutions. Additionally, you can use MiniTool System Booster to allocate more system resources for optimal performance.

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