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This WILL remove the network’s password from your Mac, so if you want to join it again afterward, you’ll have to enter that again (make sure you have it handy!).

If you then deselect “Automatically join this network,” your Mac again won’t forget the network completely or anything, but it also won’t connect to whichever one you were on without you specifically going and choosing it from the Wi-Fi menu.įinally, the most serious way to disconnect from a network is to tell your computer to forget it completely. When the Network Preferences window appears, make sure “Wi-Fi” is selected from the left-hand list. To get started, click the Wi-Fi symbol again, but this time, choose “Open Network Preferences” at the bottom. It’s a cool idea of Comcast’s to provide a way for customers to find Wi-Fi access when they’re not at home, but if your Mac tries to join “xfinitywifi” when you don’t want it to, this’ll be one way you could stop that.

I find this most helpful with that danged “xfinitywifi” network. Prevent Your Mac From Joining a Wi-Fi Network AutomaticallyĪnother thing you could do is prevent your computer from joining a network automatically.

When you’re ready to jump back on the network, just pick it from that same list. You’ll see a similar list to the one shown earlier, but holding down the Option key reveals additional information on your connected network. Anyway, to do this, hold down the Option key on your keyboard and click the Wi-Fi symbol in your menu bar. Your Mac won’t forget the network, just so you know the next time you go in and select it from your list of networks shown under that Wi-Fi symbol, you won’t need to re-enter the password to join it. The second thing you could do is disconnect from the network you’re on without turning Wi-Fi off. Disconnect From a Connected Wi-Fi Network

Otherwise, you won’t be able to use the Internet at all unless you’ve got an Ethernet network cable plugged in or something! But if you’re having trouble getting websites to load, for example, turning Wi-Fi on and off is a good first troubleshooting step to try. Your Wi-Fi functionality will be disabled completely, too, so you’ll likely want to go back to the same menu and turn Wi-Fi right back on. When you do that, you’ll of course be disconnected from the network you’re on. This shows you a list of all available Wi-Fi networks and which one you’re connected to. To do this, just click on the Wi-Fi symbol in your menu bar at the top of the screen (it looks like an upside-down pyramid with lines). I use this most often as a troubleshooting step lots of network problems can be solved by the traditional “ turn it off and on again” approach. First of all, the easiest thing to do is to turn off Wi-Fi completely.