How to fix Wi-Fi not working on Mac

Complete guide with multiple methods and troubleshooting

7-10 min read
Expert Verified
Last Updated: August 2025

Quick Answer

To fix Wi-Fi not working on a Mac, start by checking your Wi-Fi settings and ensuring that Wi-Fi is enabled. If issues persist, reset your network settings or restart your router.

Medium⏱ 7-10 min read

Prerequisites & Requirements

Before starting the troubleshooting process, ensure you have the following:
  • •A Mac running macOS Mojave (10.14) or later.
  • •Access to your Wi-Fi network credentials (SSID and password).
  • •Administrative access to your Mac to change network settings.
  • •Backup important data, especially if you plan to reset network settings.

Method 1: Check Wi-Fi Settings

This method is useful when the Wi-Fi is simply turned off or not connected to the correct network.
  • •Step 1: Click on the Apple menu in the top-left corner of the screen.
  • •Step 2: Select 'System Preferences' from the dropdown menu.
  • •Step 3: Click on 'Network'. In the left sidebar, select 'Wi-Fi'.
  • •Step 4: Ensure that 'Wi-Fi' is turned on. If it says 'Turn Wi-Fi Off', it is already on.
  • •Step 5: If Wi-Fi is on, check the network name (SSID) and ensure you are connected to the correct network.
  • •Step 6: To verify, look for a checkmark next to the network name. If not connected, select the correct network and enter the password if prompted.
  • •Step 7: If it still doesn't work, try clicking 'Advanced' and remove any old or unused networks, then reconnect.

For macOS Monterey (12) and later

In macOS Monterey and later, the interface may have slight differences.
  • •In the 'Network' settings, you may find a new 'Status' indicator showing connectivity.
  • •Use the 'Assist Me' button at the bottom for additional troubleshooting options.

For macOS Big Sur (11) and earlier

Older versions may have a different layout.
  • •The 'Network' pane may not have the same visual indicators, but the steps remain the same.
  • •Look for the 'Location' dropdown to ensure you are on the correct network configuration.

Method 2: Reset Network Settings

This method is effective when basic settings do not resolve the issue.
  • •Step 1: Open 'System Preferences' from the Apple menu.
  • •Step 2: Click on 'Network'.
  • •Step 3: Select 'Wi-Fi' from the left sidebar.
  • •Step 4: Click the '-' button at the bottom to remove the Wi-Fi service.
  • •Step 5: Click the '+' button to add a new Wi-Fi service, select 'Wi-Fi' from the dropdown, and click 'Create'.
  • •Step 6: Reconnect to your Wi-Fi network by selecting it and entering the password.
  • •Step 7: Verify the connection by checking for internet access.

Troubleshooting Common Issues

If Wi-Fi still doesn't work after following the methods above, consider these common issues:
  • •Error: 'Wi-Fi has the self-assigned IP address' - Solution: Go to 'System Preferences' > 'Network' > 'Wi-Fi' > 'Advanced' > 'TCP/IP' and set 'Configure IPv4' to 'Using DHCP'.
  • •Issue: 'Cannot connect to this network' - Fix: Forget the network by going to 'System Preferences' > 'Network' > 'Wi-Fi' > 'Advanced', select the network, and click 'Remove'. Then reconnect.
  • •Problem: 'Wi-Fi is not showing any networks' - Workaround: Restart your Mac and router. If the issue persists, reset the SMC (System Management Controller).

Advanced Tips & Shortcuts

For power users, here are some additional tips:
  • •Keyboard shortcut: Command + Space - Opens Spotlight search to quickly find 'System Preferences'.
  • •Command line: Open Terminal and use 'networksetup -getinfo Wi-Fi' to check your Wi-Fi status.
  • •Hidden feature: Use 'Wireless Diagnostics' by holding down the Option key and clicking the Wi-Fi icon in the menu bar. This tool provides detailed information and troubleshooting options.

Common Mistakes to Avoid

Avoid these common pitfalls:

Expert Tips

Regular maintenance and updates are key to preventing Wi-Fi issues.