How to Reset a "Stuck" Network Adapter on Mac

By Zennith Support • Published 2025-09-02 •
MacNetworkingTroubleshooting

Wi-Fi not turning on or randomly dropping on your MacBook? Here is the definitive guide to safely resetting your macOS network configurations.

The macOS Wi-Fi Dilemma

Sometimes a MacBook's Wi-Fi card appears to just stop functioning. The icon might have a slash through it, or the interface simply refuses to connect to known networks.

# Deleting Configuration Files

macOS stores network configurations in specific plist files. Deleting these forces the system to rebuild them from scratch upon the next reboot.

1. Turn off Wi-Fi. 2. Open Finder. Press Cmd + Shift + G to open the "Go to Folder" window. 3. Paste the following path: /Library/Preferences/SystemConfiguration/ 4. Delete these specific files (you may want to copy them to your Desktop first as a backup):

  • com.apple.airport.preferences.plist
  • com.apple.network.identification.plist
  • com.apple.wifi.message-tracer.plist
  • NetworkInterfaces.plist
  • preferences.plist

    • For a visual walkthrough, watch this detailed YouTube repair guide.

    # Reboot and Test

    Once those files are in the trash, reboot your Mac. Your system will immediately create fresh, uncorrupted versions of these networking files. Turn your Wi-Fi back on and connect!

    If you ever need to calculate network bandwidth costs, our Mortgage Calculator or traditional Calculator can handle the local math.