# Power Management

## Power Management

To configure your Mac to wake from sleep when a *Screens* session is begun, visit your Mac's **System Preferences** and click **Energy Saver**. Make sure **Wake for Wi-Fi network access** is enabled, or your Mac may not wake when *Screens* tries to connect to it.

![](https://2339352637-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9zz7BQ-wJ-I5PONO_L%2F-L9zzCcb1-VuipsqWXs7%2F-L9zzKfbEWqOsW31EUAm%2Fwake-for-network-access.png?generation=1523639483549823\&alt=media)

If *Screens* is unable connect to your Mac despite this setting being enabled, try enabling **Prevent computer from sleeping automatically when the display is off**.

![](https://2339352637-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9zz7BQ-wJ-I5PONO_L%2F-L9zzCcb1-VuipsqWXs7%2F-L9zzKfyQOKqC5Jz_1Eh%2Fprevent-sleeping.png?generation=1523639484108328\&alt=media)

## Power source

If you connect to a remote MacBook, your computer will ***not*** wake up if it is not plugged into a power source. This is by design so that your computer doesn't run out of battery power.

![](https://2339352637-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-L9zz7BQ-wJ-I5PONO_L%2F-L9zzCcb1-VuipsqWXs7%2F-L9zzKg043z8ELX2k1z9%2Fpower-brick.png?generation=1523639482897520\&alt=media)
