Practical Ways to Fix DNS_PROBE_FINISHED_NXDOMAIN Error

One of the most annoying errors encountered while surfing the internet, the DNS_PROBE_FINISHED_NXDOMAIN error can be confusing for many users. In this article, we will examine step by step what this error means, why it occurs, and how to solve it. Read on for practical ways to help you solve your problem.

What is DNS_PROBE_FINISHED_NXDOMAIN Error and Why Does It Occur?

The DNS_PROBE_FINISHED_NXDOMAIN error indicates that a website your browser is trying to access cannot be found on the DNS servers. This usually occurs due to a URL entered incorrectly in the browser or the DNS servers not responding. DNS (Domain Name System) is a system that translates domain names into IP addresses on the internet. This error occurs when there is a problem with DNS resolution.

There are several common reasons why this error can occur:

• Incorrect URL Entry: Entering an incorrect or incomplete URL can cause the browser to be unable to find the correct DNS record.
• DNS Server Issues: The DNS servers you are using may not be able to resolve a particular domain name. This can happen when the server is not responding or when the server is experiencing a temporary problem.
• Cache Issues: Your browser or system cache may contain old or incorrect DNS records.
• Network Connection Issues: Modem or router issues can prevent DNS queries from being properly transmitted.
• Firewall/Antivirus Software: Certain software or security settings can block DNS traffic, causing the error.

Check DNS Settings and Change If Necessary

Check DNS settings and change if necessary is an effective method to resolve the DNS_PROBE_FINISHED_NXDOMAIN error. Here’s how to do it:

1. For Windows Users:
   1. Open Control Panel and go to “Network and Internet”.
   2. Select “Network and Sharing Center” and then click on your active internet connection.
   3. Click on “Properties” and select “Internet Protocol Version 4 (TCP/IPv4)”.
   4. Click on “Properties” again and enter the DNS server addresses manually. For example, you can use Google DNS (8.8.8.8 and 8.8.4.4) or OpenDNS (208.67.222.222 and 208.67.220.220).
2. For Mac Users:
   1. From the Apple menu, select "System Preferences" and go to the "Network" section.
   2. Select your active internet connection and click the "Advanced" button.
   3. Go to the "DNS" tab and click the "+" button to add new DNS server addresses.

Clear Cache: DNS, Browser and System

Clearing cache can be an effective solution for many problems. For DNS_PROBE_FINISHED_NXDOMAIN error, you can do the following:

• Clear DNS Cache:

   
  For Windows: 
  
  Run Command Prompt (cmd) as administrator and enter the command ipconfig /flushdns. 
  
  For Mac: 
  
  Open Terminal and run the command sudo killall -HUP mDNSResponder. 
  

• Clear Browser Cache: The steps are different for each browser, but you can usually find the options to clear history and cache from the "History" or "Settings" menu.
• Clear System Cache: Using system cleaning tools or software to clear unnecessary files can improve overall performance.

Restart Your Network Connection and Check Your Modem/Router Settings

Restarting your network connection can fix common connection problems. Here’s what you need to do:

• Restart the Modem/Router: Turn off or unplug the power button on the back of the device, wait a few seconds, and then turn it back on. This will clear the device’s memory and refresh the connection.
• Reset Network Settings:

   
  For Windows: 
  Settings > Network & Internet > Status > Reset Network 
  
  For Mac: 
  System Preferences > Network > Select Active Connection > Click on the "-" Icon and Re-Add 
  

• Check the Cables: If you are using an Ethernet cable, make sure that the cable is secure and properly connected.

Firewall and Antivirus Software's Effect on DNS and Solutions

Firewall or a antivirus software can sometimes block DNS traffic by mistake. It is important to check the settings of these software:

• Check Firewall Settings:
  1. Open your firewall software and check for any blocking of DNS traffic.
  2. If necessary, add or edit existing rules to allow DNS client traffic.
• Temporarily Disable Antivirus Software: Temporarily disable your antivirus software to see if the problem goes away. If it does, examine the software settings more carefully.

Frequently Asked Questions

• Why is the DNS_PROBE_FINISHED_NXDOMAIN error a common problem?
  This error tends to occur due to common reasons, especially incorrect DNS settings, cache issues, or network connectivity problems.
• Is it safe to use Google DNS?
  Yes, Google DNS is generally considered a fast and reliable option. It offers a safe alternative for most users.
• Can resetting the modem/router settings fix the DNS error?
  Yes, it can help resolve temporary issues, especially with the modem or router. However, it is recommended that you take note of your current configuration before resetting the settings.
• How often should I flush the DNS cache?
  Usually, clearing it when you encounter a specific problem is enough. You do not need to create a regular cache flushing routine.

Thanks to this article, you have learned practical methods to resolve the DNS_PROBE_FINISHED_NXDOMAIN error. By following the above steps carefully, you can make your internet connection more reliable.