Mac Won't Connect to Wi-Fi? Try These Tips

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Lucas Gray

5 min read

Mac Won't Connect to Wi-Fi? Try These Tips

Have you ever encountered the problem that your Mac cannot connect to Wi-Fi, especially after upgrading to the latest macOS Monterey? Failure to connect to Wi-Fi means that you cannot access the Internet, which brings great inconvenience to our work and life. If you are facing such a problem, then don't miss this blog post. In this article, you will learn why your Mac can’t connect to Wi-Fi and how to solve the problem in 10 ways.

Why My Mac Won't Connect to Wi-Fi

There are many reasons why your Mac won't connect to Wi-Fi. Here are some of the most common ones.

  • Your Mac is not in the signal range.
  • The router is defective.
  • Problems with the broadband.
  • Problems with the Wi-Fi network.
  • Too old macOS versions.

How to Fix "Mac Won't Connect to Wi-Fi" Problem

Here are some basic methods you can try when your Mac fails to connect to Wi-Fi.

  • Make sure your Mac is within the signal range.
  • Check whether the network cable is properly connected.
  • Turn off and turn on Wi-Fi to restart it.
  • Restart your Mac.
  • Reboot the router.
  • Contact the broadband provider.

If your Mac still can't connect to Wi-Fi, then move to the following advanced methods.

Delete Your Registered Network

This method requires you to delete your network first and then re-enter your network password to connect.

  1. Click the Apple Menu > System Preferences > Network. Open Network Preferences
  2. Select Wi-Fi in the left column and then click the Advanced button in the right column. Open Wifi Advanced Settings
  3. Select your Wi-Fi from the Preferred Networks list and then click the Minus (-) button. Remove Registered Wifi
  4. Click the Wi-Fi icon in the status menu, find your network name, and then enter your Account Name and Password to reconnect to the network.

Unplug External USB Devices

On some older MacBooks, the USB and Wi-Fi modules are close together. When your computer is plugged into a USB or other external device, it may interfere with the Wi-Fi module's signal, causing the Wi-Fi connection to fail. All you need to do is unplug the external devices.

Update macOS

An old macOS may cause your Mac to fail to connect to Wi-Fi or have an unstable Wi-Fi connection. If you haven't updated your operating system for a long time, you may need to do so. (Please don't forget to back up your system before updating it.)

Update macOS

Update DHCP Lease

If you have a fixed IP address, you can try to manually update the DHCP lease to solve the problem of the Wi-Fi connection.

  1. Click the Apple Menu > System Preferences > Network.
  2. Select Wi-Fi in the left column and then click the Advanced button in the right column.
  3. Select the TCP/IP option and click the Update DHCP Lease button. Update TCP Lease

Change DNS Settings

Normally, DNS addresses are obtained automatically. If your current DNS is not working properly, you can try using a free public DNS. Google has a free DNS. You can have a try.

  1. Open System Preferences > Network.
  2. Click Advanced and select DNS.
  3. Click the Plus (+) button and add Google's DNS address: or Change DNS Settings
  4. Click the OK button and reconnect to the network.

The DNS cache stores as many DNS lookups as possible so that you can perform DNS lookups again. When you need to resolve network problems caused by DNS cache, you can clean the DNS cache. With BuhoCleaner, you can clean up your DNS cache with one click.

  1. Download and install BuhoCleaner on your Mac.
  2. Launch BuhoCleaner, select Toolkit, and click the Start button to flush DNS cache quickly. Flush DNS Caches

Delete Files from System Configuration

Delete all the files in the System Configuration folder except for

  1. Open Finder from the Dock.
  2. Press Shift + Command + G, and then type /Library/Preferences/SystemConfiguration in the blank box and press the Return button on the keyboard.
  3. Keep the file named and delete all other files in it. Delete System Configuration Files


Now you have learned several ways to solve the problem that Mac cannot connect to Wi-Fi. Hope you can access Wi-Fi by trying one or more of these methods. If your Mac still cannot connect to Wi-Fi through these methods, there may be a problem with your Mac hardware, and you may need to seek help from a repairer.

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