Forget a network on your Mac

  1. Choose Apple menu  > System Preferences, then click Network.
  2. Select Wi-Fi in the list on the left.
  3. Click the Advanced button.
  4. The Wi-Fi pane shows a Preferred Networks list. Select the Wi-Fi network that you want your Mac to forget.
  5. Click the remove button (–) beneath the list. If you're asked to confirm, click Remove.
  6. Click OK.
  7. Click Apply.