KB | Mac | WiFi Unable to connect to any networks

Delete all WiFi configuration files

• Turn off WiFi by clicking the Turn WiFi Off in the menu bar.
• Go to Finder and click Go and Go To Folder… (or press Command+Shift+G)
• Enter the following and click Go
• /Library/Preferences/SystemConfiguration/
• Select the following files and move to trash:
  • com.apple.airport.preferences.plist
  • com.apple.network.identification.plist
  • com.apple.wifi.message-tracer.plist
  • NetworkInterfaces.plist
  • preferences.plist
• Empty trash
• Reboot Mac
• Turn on Wi-Fi and reconnect to network