To forget a network of wi-fi on a Mac, you can follow these steps:
Click on the Wi-Fi Icon:
In the menu bar at the top-right corner of your screen, click on the Wi-Fi icon (it looks like a set of concentric bars).
Open Network Preferences:
In the drop-down menu that appears, select “Open Network Preferences.” Alternatively, you can go to “System Preferences” from the Apple menu and then choose “Network.”
Select Wi-Fi:
In the Network Preferences window, make sure that the left sidebar is set to Wi-Fi. You should see a list of available Wi-Fi networks.
Advanced Options:
Click on the “Advanced” button in the lower-right corner of the Wi-Fi preferences window.
Choose the Network:
In the “Preferred Networks” tab, you’ll see a list of Wi-Fi networks your Mac has connected to. Select the network you want to forget.
Forget:
Once you’ve selected the network, click on the minus (“-“) button below the list. This will remove the selected Wi-Fi network from the list.
Confirm: A confirmation dialog will appear asking if you are sure you want to forget the network. Click the “Remove” button to confirm.
Apply Changes:
Click the “OK” or “Apply” button to save the changes.
Close Preferences:
Close the Network Preferences window.
By following these steps, you have successfully forgotten the selected Wi-Fi network on your Mac. The next time you are in the range of that network, your Mac won’t automatically connect to it, and you’ll need to re-enter the password if you decide to connect again.