How to Fix DNS_PROBE_FINISHED_NXDOMAIN: Step-by-Step Guide

Encountering an error message while trying to access your favorite website can be frustrating, especially when it halts your workflow or leisure browsing. Among the various browser error codes, the DNS_PROBE_FINISHED_NXDOMAIN message is one of the most common yet intimidating issues web users face. This error typically manifests in Google Chrome and other Chromium-based browsers, signaling a breakdown in the communication between your device and the target website's server. Fortunately, because this error is usually rooted in local network configurations, outdated cache files, or misconfigured DNS settings, you can easily troubleshoot and resolve it with a few methodological steps.

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In This Article

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• Understanding the DNS_PROBE_FINISHED_NXDOMAIN Error
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• Flush Your DNS Cache and Renew IP
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• Change Your DNS Servers
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• Restart the DNS Client Service
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• Check Your Local Hosts File
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• Temporarily Disable VPN and Antivirus Software
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• Conclusion
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• Frequently Asked Questions
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Understanding the DNS_PROBE_FINISHED_NXDOMAIN Error

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To effectively fix a problem, it helps to understand its root cause. The acronym NXDOMAIN stands for "Non-Existent Domain." When you type a web address into your browser, your operating system relies on the Domain Name System to translate that human-readable URL into a machine-readable IP address. If the DNS lookup fails because the domain cannot be located on the internet, your browser displays this specific error. This problem can stem from issues on the server-side, but most often, it points to a local misconfiguration on your computer or router.

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When tackling network connectivity issues, having a solid understanding of network diagnostics can save you hours of trial and error. Additionally, ensuring your browser is optimized and free from corrupted data is a core part of effective browser troubleshooting. Let us walk through the most effective methods to resolve this domain resolution failure.

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Flush Your DNS Cache and Renew IP

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The very first and most successful fix for this error is flushing your local DNS cache. Over time, your operating system stores the IP addresses of websites you visit to speed up future loading times. However, if a website's IP address changes or if cached data becomes corrupted, your computer will look in the wrong place, triggering an NXDOMAIN error.

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How to Flush DNS on Windows

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• Press the Windows Key, type cmd, right-click on Command Prompt, and select Run as administrator.
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• Type the following command and press Enter: ipconfig /flushdns
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• You should see a success message confirming that the DNS Resolver Cache was successfully flushed.
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• Next, reset your IP configuration by typing: ipconfig /release and pressing Enter.
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• Finally, renew your IP address by typing: ipconfig /renew and pressing Enter.
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How to Flush DNS on macOS

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• Open Terminal via Spotlight search or through the Utilities folder.
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• Paste the appropriate command depending on your macOS version. For modern macOS, use: sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
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• Press Enter, type your administrator password when prompted, and press Enter again.
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Change Your DNS Servers

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If flushing your cache does not work, the issue might lie with your Internet Service Provider's default DNS servers. ISPs often use slower or less reliable DNS resolvers that can experience downtime or routing hiccups. Switching to a public, highly reliable alternative like Google Public DNS or Cloudflare can instantly bypass the error.

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Setting Up Public DNS on Windows

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Open the Control Panel, navigate to Network and Sharing Center, and click on Change adapter settings. Right-click your active connection (Ethernet or Wi-Fi) and select Properties. Double-click on Internet Protocol Version 4 (TCP/IPv4). Select the radio button labeled "Use the following DNS server addresses" and enter:

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• Preferred DNS server: 8.8.8.8 (for Google) or 1.1.1.1 (for Cloudflare)
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• Alternate DNS server: 8.8.4.4 (for Google) or 1.0.0.1 (for Cloudflare)
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Check the box for "Validate settings upon exit" and click OK to save your changes.

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Restart the DNS Client Service

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Windows operating systems run a background service known as the DNS Client, which resolves and caches domain name system names. If this service crashes or hangs, domain lookups will fail.

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• Press the Windows Key + R to open the Run dialog box.
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• Type services.msc and hit Enter.
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• Scroll down the list until you find DNS Client.
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• Right-click on it and check if the Restart option is clickable. If it is greyed out, it is handled automatically by Windows, and you can skip this step. If available, click Restart.
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Check Your Local Hosts File

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The hosts file is a local operating system file that maps hostnames to IP addresses. If a website has been manually added to this file with an incorrect IP address—or if malware altered it—you will encounter the NXDOMAIN error whenever you try to visit that specific domain.

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• On Windows, navigate to C:\\Windows\\System32\\drivers\\etc\\.
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• Open the file named hosts using a text editor like Notepad running as administrator.
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• Look at the bottom of the file to see if the website URL you are trying to visit is listed. If it is, and you did not put it there, delete that line, save the file, and restart your browser.
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Temporarily Disable VPN and Antivirus Software

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Virtual Private Networks (VPNs) and aggressive third-party antivirus suites often reroute your internet traffic or filter DNS requests to protect your privacy. Sometimes, these security tools misinterpret safe website requests as malicious or fail to route DNS queries correctly, resulting in domain lookup failures.

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To test if this is the cause, temporarily turn off your VPN application or disable web protection features in your antivirus software. If the website loads immediately after doing so, you will need to adjust your security software settings or contact their support team for assistance.

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Conclusion

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Dealing with the DNS_PROBE_FINISHED_NXDOMAIN error can be annoying, but it is rarely a permanent or serious problem. By systematically working through these troubleshooting steps—ranging from flushing your local DNS cache and switching to public DNS resolvers to examining your hosts file and temporarily disabling VPNs—you can successfully restore your internet connectivity. Always remember to restart your browser and clear your browser cache after applying these fixes to ensure clean results.

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Frequently Asked Questions

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What does DNS_PROBE_FINISHED_NXDOMAIN mean?

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This error means that your web browser could not find the IP address associated with the domain name you typed into the address bar, typically due to a local DNS lookup failure.

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Is the DNS_PROBE_FINISHED_NXDOMAIN error caused by the website?

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It can be caused by the website if the domain has expired or its DNS records are misconfigured on the server side. However, in most cases, it is a local issue originating from your computer or router.

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Does changing my DNS server speed up my internet?

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Switching to a fast public DNS provider like Cloudflare or Google can improve your website load times by reducing the time it takes to resolve domain names into IP addresses, though it will not change your raw bandwidth speed.

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Will flushing my DNS delete personal data?

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No. Flushing your DNS cache simply clears out stored records of recently visited website IP addresses. It does not delete your personal files, browser history, or saved passwords.

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Why does this error only happen in Google Chrome?

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While this error is most commonly reported in Chrome due to its aggressive internal caching and error messaging, it can also occur in other web browsers like Microsoft Edge, Brave, and Firefox.

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