Regardless, here’s what you need to do if you want to wake a Windows 10 laptop from sleep from an external keyboard. This might be a hardware problem, or it might be a software issue. External keyboards and mice can also be used to wake a Windows 10 laptop from sleep but you’ll find that often, they do nothing. Although the target system power state is the same between hybrid shutdown and hibernates (S4), Windows will only explicitly disable WOL when it's a hybrid shutdown transition, and not during a hibernate transition.A Windows 10 laptop that has entered Sleep mode can be ‘waken’ by pressing the power button on the laptop, or by tapping a key on the built-in keyboard. So WOL is supported only from sleep (S3), or when the user explicitly requests to enter hibernate (S4) state in Windows 10. This behavior removes the possibility of invalid wake-ups when an explicit shutdown is requested. Network adapters are explicitly not armed for WOL in these cases, because users expect zero power consumption and battery drain in the shutdown state. In this scenario, WOL from S4 or S5 is unsupported. In Windows 10, the default shutdown behavior puts the system into the hybrid shutdown (also known as Fast Startup) state (S4). So waking from S5 is possible on some systems if enough residual power is supplied to the network adapter, even though the system is in the S5 state and devices are in D3. However, some network adapters can be left armed for waking if enough residual power is available. WOL from S5 isn't officially supported in Windows 7. And all devices are put into the lowest power state (D3). In Windows 7, the default shutdown operation puts the system into the classic shutdown state (S5).
The default behavior in response to WOL events has changed from Windows 7 to Windows 10. Typically, such an event is a specially constructed Ethernet packet. The Wake on LAN (WOL) feature wakes a computer from a low-power state when a network adapter detects a WOL event. This article provides information on how to enable Wake on LAN behavior in different versions of Windows.Īpplies to: Windows 10, version 1903, Windows 10, version 1809, Windows 7 Service Pack 1 Original KB number: 2776718 Summary
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