Point Mobile devices with Android 7 and Android 8
In case of Android 9, it was enabled as a default by Google OS design.
When your device enters sleep mode, basically the Wi-Fi will be disconnected for saving battery.
If Keep Alive Mode is turned on, the Wi-Fi will be maintained during sleep mode for stable Wi-Fi connection.
If you change the Keep Alive Mode option, you must reboot the device to apply the changed value. |