How to Solve Dns_probe_finished_nxdomain

Encountering the DNS_PROBE_FINISHED_NXDOMAIN error can be frustrating when trying to access websites. This error indicates that the DNS (Domain Name System) server was unable to resolve the domain name, meaning the website's address could not be found. Fortunately, there are several troubleshooting steps you can take to resolve this issue and restore your internet browsing experience. In this guide, we will explore effective solutions to fix the DNS_PROBE_FINISHED_NXDOMAIN error and ensure smooth access to your favorite websites.

How to Solve Dns_probe_finished_nxdomain

The DNS_PROBE_FINISHED_NXDOMAIN error typically occurs due to DNS-related problems, incorrect network settings, or issues with your internet service provider. Below are comprehensive methods to troubleshoot and fix this problem:

1. Restart Your Router and Computer

Sometimes, a simple restart can resolve temporary glitches causing DNS errors. Follow these steps:

• Turn off your router and modem, then unplug them from power sources.
• Wait for about 30 seconds to 1 minute to ensure all residual power dissipates.
• Reconnect and power on your router and modem.
• Restart your computer or device.

After restarting, try accessing the website again. This step often clears temporary network issues and refreshes DNS settings.

2. Clear Browser Cache and Cookies

Corrupted cache or cookies can sometimes interfere with DNS resolution. Clearing them can help:

• Open your browser's settings menu.
• Navigate to the privacy or history section.
• Select the option to clear browsing data, including cookies and cached images/files.
• Choose an appropriate time range (e.g., "All time").
• Confirm and clear the data.

After clearing, restart your browser and check if the error persists.

3. Change DNS Servers to Public DNS

Using your ISP's default DNS servers can sometimes cause issues. Switching to public DNS servers like Google DNS or Cloudflare DNS can improve resolution:

Steps to change DNS settings:

1. Open Network Settings:
   • On Windows: Go to Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings.
   • On Mac: Go to System Preferences > Network.
2. Select your active network connection and open Properties or Advanced options.
3. Locate DNS settings.
4. Replace existing DNS addresses with:
   • Google DNS: 8.8.8.8 and 8.8.4.4
   • Cloudflare DNS: 1.1.1.1 and 1.0.0.1
5. Save changes and restart your browser.

Testing access after changing DNS servers often results in resolving the NXDOMAIN error.

4. Flush DNS Cache

Corrupted DNS cache can cause resolution failures. Flushing the DNS cache forces your system to fetch fresh DNS data:

For Windows:

• Press Windows + R, type cmd, and press Enter.
• Type ipconfig /flushdns and press Enter.
• Restart your browser and check if the issue persists.

For Mac:

• Open Terminal from Applications > Utilities.
• Type sudo killall -HUP mDNSResponder and press Enter.
• Enter your administrator password if prompted.
• Close Terminal, restart your browser, and test access.

This clears the DNS cache and can fix resolution errors.

5. Disable and Re-enable Network Adapter

Disable your network adapter temporarily to reset network settings:

• Open Network Settings:
• On Windows: Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings.
• Right-click your active network connection and select Disable.
• Wait a few seconds, then right-click again and select Enable.

Re-enabling the network adapter can help resolve DNS issues caused by network configuration errors.

6. Check Hosts File for Incorrect Entries

The hosts file overrides DNS resolution. An incorrect entry might block access to certain websites, causing the NXDOMAIN error:

• Locate the hosts file:
• On Windows: C:\Windows\System32\drivers\etc\hosts
• On Mac/Linux: /etc/hosts

Open the file with administrator privileges using Notepad (Windows) or TextEdit (Mac). Look for entries related to the problematic website. If you find suspicious or incorrect entries, delete or comment them out by adding a # at the beginning of the line. Save the file and restart your browser.

7. Reset Network Settings

If none of the above solutions work, resetting your network settings can resolve persistent DNS problems:

Windows:

• Open Command Prompt as administrator.
• Run the following commands one by one:
  • netsh winsock reset
  • netsh int ip reset
  • ipconfig /release
  • ipconfig /renew
  • ipconfig /flushdns
• Restart your computer and test website access.

Mac:

• Go to System Preferences > Network.
• Select your network connection and click Advanced.
• Navigate to the TCP/IP tab and click Renew DHCP Lease.
• Apply changes and restart your browser.

This resets network configuration and can fix DNS errors.

8. Contact Your Internet Service Provider (ISP)

If you've tried all the above steps and still face the DNS_PROBE_FINISHED_NXDOMAIN error, the problem might be on your ISP's end. Contact their support team to inquire about DNS server outages or issues. Sometimes, switching to a different DNS provider temporarily can help determine if the issue is ISP-related.

Summary of Key Points

In conclusion, the DNS_PROBE_FINISHED_NXDOMAIN error can be caused by various factors, including DNS server issues, incorrect network settings, or browser cache problems. To resolve this error:

• Restart your router and device to clear temporary glitches.
• Clear your browser cache and cookies.
• Change DNS servers to reliable public options like Google DNS or Cloudflare DNS.
• Flush your DNS cache to remove corrupted entries.
• Disable and re-enable your network adapter.
• Check and edit your hosts file for incorrect entries.
• Reset network settings if needed.
• Contact your ISP if the problem persists.

By systematically applying these solutions, you can effectively fix the DNS_PROBE_FINISHED_NXDOMAIN error and regain seamless access to websites. Remember, patience and methodical troubleshooting are key to resolving network-related issues efficiently.