How to Stop Your Mac from Joining a WiFi Network Automatically in High Sierra

How to Stop Your Mac from Joining a WiFi Network Automatically in High Sierra - MMFI

In macOS High Sierra, you can sign in to a WiFi network on your Mac but it doesn’t have to be automatic. In this guide, I’ll show you how to stop your Mac from joining a WiFi network automatically. Just remember, this works on a Mac running High Sierra.


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Apple has added a useful feature to macOS High Sierra that will prevent your Mac from joining any nearby WiFi network automatically. I find it super annoying when a number of nearby network devices pop up on the Mac and make an attempt to sign in automatically. If you’re having the same problem, you don’t have to forget the network anymore. Just follow these steps to stop your Mac from auto-joining it without manual intervention.

How to Stop Your Mac from Joining a WiFi Network Automatically

 – Disable Specific Networks

You can stop joining a network automatically but can still keep the login credentials in your network settings. To do this:

1. On the top left corner of the Mac screen, click the Apple menu and select System Preferences.


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2. In the System Preferences dialog, select Network.

Network - System Preferences

3. On the left pane, make sure the Wi-Fi tab is selected.

4. Click the Network name dropdown to see all available networks.

5. Select the Wi-Fi network you want to stop joining automatically.

6. Uncheck the Automatically join this network checkbox.

stop your Mac from joining a WiFi network automatically

Repeat the steps for all Wi-Fi networks you can access but don’t want to join in automatically.

Also Read: All the New Features in macOS High Sierra You Should Check Out

How to Automatically Join Specific Networks on Mac

If you always want your Mac to join a specific network, you can re-enable auto-joining without needing to use the password again. The process is more or less the same as before.

1. On the top left corner of the Mac screen, click the Apple menu and select System Preferences.

2. In the System Preferences dialog, select Network.

3. On the left pane, make sure the Wi-Fi tab is selected.

4. Click the Network name dropdown to see all available networks.

5. Select the Wi-Fi network you want to stop joining automatically.

6. Check the Automatically join this network checkbox.

How to Disable All Networks your Mac has Joined

If you rather have your Mac not storing any network settings for future access, you can completely disable the feature. This means you’ll have to re-enter the WiFi password every time you join a network, even if you’ve signed in before.

1. On the top left corner of the Mac screen, click the Apple menu and select System Preferences.

2. In the System Preferences dialog, select Network.

3. On the left pane, make sure the Wi-Fi tab is selected.

4. At the bottom of the window, click Advanced.

How to Disable All Networks your Mac has Joined

5. Uncheck the Remember networks this computer has joined checkbox.

Your Mac will no longer remember any of the accessible networks automatically. You’ll have to manually join a network you want by entering the login credentials.

So that’s how you stop your Mac from joining a WiFi network automatically in High Sierra.

If you found this guide useful, be sure to check our other useful tutorials in the Mac Tips section.

Written by Adeline Gear
Hi! I'm Adeline Gear, content creator at Maqmodo.com. When I do manage to pull myself away from all my favorite gadgets and apps, I unwind in my terrace garden that has the prettiest flowers in the neighborhood. That's until the mosquitoes chase me back in! La Vita è Bella!