How to Fix DNS_PROBE_FINISHED_NXDOMAIN Error?

Encountering the DNS_PROBE_FINISHED_NXDOMAIN error can be frustrating, especially when accessing important websites or services. This error usually points to a problem with your DNS settings, but fortunately, there are several methods to troubleshoot and resolve it. 

I’ll walk you through this error, its common causes, and detailed steps to fix it. With a cPanel lifetime license, managing servers can become hassle-free. The interface is user-friendly and makes administration a breeze.

What is the DNS_PROBE_FINISHED_NXDOMAIN Error?

The DNS_PROBE_FINISHED_NXDOMAIN error indicates that the DNS (Domain Name System) lookup has failed, meaning the domain name cannot be resolved into an IP address. Essentially, your browser cannot find the server that hosts the website you’re trying to reach.

DNS translates domain names into IP addresses. When this translation fails, the DNS_PROBE_FINISHED_NXDOMAIN error appears.

Common Causes of the Error

Several factors can cause the DNS_PROBE_FINISHED_NXDOMAIN error:

1. Incorrect DNS Configuration: Misconfigured DNS settings can prevent your device from resolving domain names.
2. Internet Connection Issues: A disrupted or unstable internet connection can lead to DNS lookup failures.
3. Cache Problems: Corrupted DNS or browser caches can interfere with DNS resolution.
4. VPN or Antivirus Software might cause the domain name system to show that it cannot resolve a website’s DNS records.: Sometimes, VPNs or antivirus programs can conflict with DNS settings.
5. Firewall Settings: Overly aggressive firewall settings can block DNS requests.

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Step-by-Step Guide to Fixing the DNS_PROBE_FINISHED_NXDOMAIN Error

1. Check Internet Connection

Before diving into DNS-specific fixes, ensure your device is correctly connected to the Internet. Also, check if other devices on the same network can access the Internet. 

2. Restart Router/Modem

Sometimes, restarting your network hardware can resolve temporary connectivity issues. Power cycle your router and modem.

3. Clear Browser Cache

Clear your browser cache. You can opt for a self-hosted WordPress service to enhance a website’s performance and flexibility. 

• Google Chrome:
  
  1. Navigate to chrome://settings/clearBrowserData.
  2. Select a time range, check “Cached images and files,” and click “Clear data.”

4. Flush DNS Cache

Flushing the DNS cache removes stored DNS information, forcing your computer to query fresh data.

1. Windows:

1. Open Command Prompt as an administrator.
2. Enter an appropriate command if you encounter the ipconfig /flushdns. You can resolve the domain error by refreshing your DNS records.

2. MacOS users might see the :

1. Open Terminal.
2. Enter sudo killall -HUP mDNSResponder.

3. Linux:

1. Open Terminal.
2. Enter sudo systemd-resolve –flush-caches.

5. Change DNS Servers

Switching to a public DNS server can often resolve DNS issues.

Windows:

1. Open Control Panel > Network and Internet > Network and Sharing Center to fix DNS probe errors.
2. Click on “Change adapter settings.”
3. Right-click your network connection and select “Properties.”
4. Select IPv4 and click “Properties”.
5. Choose “Use custom DNS servers” and enter 8.8.8.8 and 8.8.4.4 for Google DNS or 1.1.1.1 and 1.0.0.1 for Cloudflare DNS.

macOS:

1. Go to System Preferences > Network and ensure the correct settings to avoid DNS probe issues.
2. Select your network connection and click “Advanced.”
3. Go to the DNS tab, click the “+” button, and add the new DNS addresses.

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6. Restart DNS Client Service (Windows Only)

Restarting the DNS client service can fix resolution issues.

• Windows:
• Press Windows + R and type services. msc, and press Enter.
• Find “DNS Client,” right-click, and select “Restart.”
  

What Are Some Other Advanced Fixes?

If the basic troubleshooting steps haven’t resolved the DNS_PROBE_FINISHED_NXDOMAIN error, here are some advanced fixes to try:

Disable Antivirus/Firewall

Antivirus and firewall software can sometimes interfere with DNS settings, leading to an error message that the domain name system cannot resolve. Temporarily turning these off can help identify if they are causing the problem.

Windows:

1. Search for “Windows Security.”
2. Go to “Firewall & network protection” and select your active network.
3. Turn off the firewall and check if the error persists.

MacOS:

1. Go to System Preferences > Security & Privacy.
2. Select the “Firewall” tab and turn off the firewall.

Reset TCP/IP

Resetting the TCP/IP stack can resolve network configuration issues, including when the domain name system cannot resolve a website’s DNS records.

Windows:

1. Open Command Prompt as an administrator.
2. Run netsh int ip reset.
3. Restart your computer.

MacOS:

1. Go to System Preferences > Network.
2. Select your network, click “Advanced,” go to the TCP/IP tab, and click “Renew DHCP Lease.”

Conclusion

The DNS_PROBE_FINISHED_NXDOMAIN error can be disruptive, but it’s usually straightforward to fix by following these steps. Ensuring your DNS settings are correct, clearing caches, and switching to reliable DNS servers can resolve most issues. If problems persist, consider consulting with your ISP or a technical expert.

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