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Ultimate Guide To Resolve DNS Address Could Not Be Found Mac Issue

DNS address could not be found Mac is one of such well-known errors that a million Mac users encounter. This issue is mainly associated with the misconfiguration of the DNS server that could not be found the DNS address. Once this error occurs on your device, the IP address of your Mac is unable to retrieve the access for the internet servers. However, it does not block access to all the websites, but it pop-ups on random pages which is quite annoying. So, if you are going through this frustrating issue on your MacBook and looking for a permanent solution to resolve this out, then this article will be your ultimate guide. In this content, we will explore all the probable causes and efficient solutions to overcome this issue as shortly as possible.

Probable Causes for Why DNS Address Could not be found Mac

If the DNS server is not responding Mac, then there might be several reasons behind this issue. Basically, this issue happens due to an unresponsive domain or when server domain goes technically wrong. If the DNS server is unable to access, then your device will undoubtedly trigger this issue. Another reason for this issue is due to the changing of the IP address at a server-level. However, you can easily troubleshoot this issue without any difficulty.

We will explore some of the beneficial methods in the next section to resolve this error as soon as possible.

Effective Methods to Resolve DNS Address Could Not be Found Mac Issue

We have prepared a few easy methods to resolve DNS error mac issue in every possible way. You can go through either one of these methods or all the methods until you are settled to resolve this issue on your Mac.

Method 1: Remove the Network Configuration Files

If somehow the network configuration files go corrupted or if there any server error with the files, then you must remove that to avoid such bugs on your Mac system. Following are some of the hacks to do so.

  1. At first, turn on your MacBook and go to the WiFi option from the menu bar. Turn this option on.
  2. Now, press the Command+Shift+G key at the same time on your keyboard to navigate to the Library on your Mac.
  3. Navigate to the Preferences option and click on the System Configuration folder. Then, enter the following files:  (1) com.apple.airport.preferences.plist (2) com.apple.network.identification.plist (3) com.apple.wifi.message-tracer.plist (4) NetworkInterfaces.plist (5) preferences.plist.
  4. Now, copy all the files in a safe location so you can easily restore them.
  5. After that, select Restore your Mac option from the bottom-right corner and enable the WiFi again to complete the process.

Try restarting your MacBook and check whether the issue continues or not. If still, the DNS server could not respond, try another method below.

Method 2: Change the DNS server

Sometimes due to an internal server or a bad network connection results in changing the DNS server itself. Therefore, you need to change the DNS server again and set it as new to eliminate the issue. Following are some exceptional hacks to do so.

  1. At first, turn on your MacBook and navigate to the System Preferences from the Apple menu.
  2. Now, select that option and click on Network to open the WiFi settings.
  3. Select the WiFi settings on the left side of the window and click on the Advanced tab from the list appears.
  4. Choose the DNS tab and click on the “+” button from the bottom-left corner of the window. Then, add a new DNS server.
  5. After that, choose a compatible DNS server from the list and click on the Hardware tab.
  6. Now, change the configuration from Automatically to Manual and click on the MTU option.
  7. Then, select Manual and this time enter 1453 as the MTU number to proceed next.
  8. At last, click on OK and click on Apply to save the changes.

Try restarting your MacBook and check whether the DNS server error is resolved or not. If still, the DNS server not responding Mac, then try another method below.

Method 3: Refresh the “Discovery Service”

If the above-mentioned didn’t work for you, then you have to refresh the discovery service on your MacBook to eliminate the DNS server error. Following are some of the steps below to do so.

  1. At first, turn on your MacBook and then navigate to the Terminal section from the Launchpad.
  2. Now, enter the following command in the command box when prompts: “sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.discoveryd.plist” in the command box and enter your password.
  3. Now, run the command and press the Enter key when the process is completed.

Restart your MacBook and check whether the DNS address could not be found Mac issue is resolved or not.


In this article, we have reviewed all the effective methods to settle the DNS address could not be found Mac issue. You can try one of these solutions or all the solutions to get your problem solved. Hope the article was beneficial enough to assist you on how to handle a DNS server not responding Mac error.

In case, the issue still persists and you are not capable to resolve that, then there might be some internal faults or any hardware issues. In that case, better you leave your system to a professional hand or consult with a computer genius. At last, we counsel you to draw your valuable feedback below to let us know about your experience.