Windows
- Go to Control Panel > System and Security > System > Device Manager
- In Device Manager, expand Bluetooth Radios, right-click on the Bluetooth wireless adapter, and then click Properties.
- In the Properties window, click on the Power Management tab
- Uncheck the option “Allow the computer to turn off this device to save power”
- Click OK and restart your computer to apply the change.
macOS
Navigate to the Bluetooth preference pane in System Preferences:
a) Go to Apple Menu > System Preferences > Bluetooth
In the bottom-right corner of the Bluetooth preference window, click Advanced.
b) Make sure all three options are checked:
- Open Bluetooth Setup Assistant at startup if no keyboard is detected
- Open Bluetooth Setup Assistant at startup if no mouse or trackpad is detected
- Allow Bluetooth devices to wake this computer
c) Click OK.
These options ensure that Bluetooth-enabled devices can wake your Mac, and that the OS X Bluetooth Setup Assistant will launch if a Bluetooth keyboard, mouse or trackpad is not detected as connected to your Mac.