This article will show you how to enable or disable Wake on LAN access in Mac OS. This allows you to wake your Apple laptop or desktop from sleep using an iPhone or iPad.NOTE: The Apple laptop or desktop must be connected to a network for this to work.Here is how to enable or disable this:1. Click on the Apple menu at the top left of your Mac. Click on System Preferences. 2. Click and open Energy Saver. 3. Check the box for Wake for network access to enable Wake on LAN or uncheck it to disable Wake on LAN. Changes are made automatically.