What Does It Mean When DNS Server Might Be Unavailable?


Scott Campbell

Have you ever encountered the frustrating error message that says “DNS Server Might Be Unavailable”? If so, you’re not alone.

This common issue can disrupt your internet browsing experience and leave you feeling helpless. But fear not, because in this article, we will explore what this error means and how to troubleshoot it.

What is a DNS Server?

Before we delve into the meaning of the “DNS Server Might Be Unavailable” error, let’s first understand what a DNS server is. DNS stands for Domain Name System, and it acts as a phonebook for the internet. When you type a website URL into your browser, such as www.example.com, the DNS server translates that human-readable domain name into an IP address which computers can understand.

Understanding the Error Message

When you encounter the “DNS Server Might Be Unavailable” error message, it means that your computer is unable to establish a connection with the DNS server. This could be due to various reasons:

  • Network Connectivity Issues: Your computer may have lost connection to the network or experiencing intermittent connectivity problems.
  • DNS Server Problems: The DNS server itself may be experiencing technical issues or undergoing maintenance.
  • Incorrect DNS Settings: It’s possible that your computer’s DNS settings are misconfigured or pointing to an incorrect IP address.

Troubleshooting Steps

If you encounter the “DNS Server Might Be Unavailable” error, here are some steps you can take to resolve the issue:

1. Check Network Connectivity

The first step is to ensure that your computer has a stable internet connection. You can try restarting your router or connecting to a different network to rule out any network-related issues.

2. Flush DNS Cache

Flushing the DNS cache can help resolve any temporary DNS-related problems.

Open the command prompt (Windows) or terminal (Mac/Linux) and type the following command: ipconfig /flushdns. This will clear the DNS cache and force your computer to obtain fresh DNS information.

3. Use Alternative DNS Servers

If the default DNS server is experiencing issues, you can try using alternative DNS servers such as Google Public DNS or OpenDNS. To change your DNS settings, go to your network adapter settings and enter the new DNS server addresses.

4. Disable Firewall or Antivirus

In some cases, firewall or antivirus software may interfere with your computer’s connection to the DNS server. Temporarily disabling these security measures can help determine if they are causing the issue.

5. Restart Your Computer

Sometimes a simple restart can fix various technical glitches, including issues with the DNS server. Give it a try and see if the error persists after rebooting your computer.


The “DNS Server Might Be Unavailable” error message can be frustrating, but with these troubleshooting steps, you should be able to resolve the issue in most cases. Remember to check your network connectivity, flush the DNS cache, consider alternative DNS servers, disable firewall/antivirus temporarily if necessary, and restart your computer if all else fails.

By following these steps, you’ll be well-equipped to tackle this error and get back to seamless internet browsing in no time!

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