If you’re having trouble forgetting a Wi-Fi network you’ve connected to on your Mac, there are a few things you can do. First, make sure the network is actually off. If it’s still listed in System Preferences under “Wi-Fi,” then it’s still active and you won’t be able to forget it. Next, try restarting your Mac. This sometimes clears out temporary files that can keep a network active. If all of that fails, you can try deleting the network from System Preferences. Just click on the Wi-Fi icon and select “Remove Network.” After that, you’ll need to reconnect to the network if you want to use it again. ..
In addition to removing old connections, forgetting a Wi-Fi network can help you troubleshoot connection issues. If a network has changed its password and your Mac doesn’t give you a password prompt (or if it’s just being flaky), you can try forgetting and rejoining the network.
To do so, click the Wi-Fi icon in your Mac’s menu bar, and then select “Open Network Preferences.”
Here, click “Advanced.”
Under the “Wi-Fi” tab, scroll through and select the network you want your Mac to forget, and then click the minus sign (-).
In the prompt, click “Remove” to forget the network. This will remove the network’s login credentials from your iCloud Keychain, as well, making it inaccessible to all of your other Apple devices.
Click “OK” in the Wi-Fi screen.
Click “Apply” in the Network window to save your changes.
Your Mac has now forgotten the Wi-Fi network. If you want, you can click the Wi-Fi icon in the menu bar to log in to the network again.
If you use multiple Wi-Fi networks in the same location (like your home or office), you might not want your Mac to forget any of them. In that case, you can prioritize those you use most often.
RELATED: How to Prioritize Wi-Fi Networks on a Mac
