Wake-on-LAN functionality requires various settings, such as firewall, antivirus programs, BIOS, driver, operating system and router settings to be set up correctly. To learn more about your system settings check with your system manufacturer (OEM). For the driver settings, proceed with the instructions below:
Note that on some systems, the Power Management options could be grayed out because the computer is using Modern Standby. With Modern Standby, the computer is always connected to the Internet in every sleep state. However, Modern Standby does have its own set of wake sources. You can read more about Modern Standby wake sources.
If those settings are all set correctly, the network adapter is ready to go for Wake-on-LAN. Note that the machines have to be on the same subnet, and Wake-on-LAN may not be possible if there is any separation between the devices other than a single router.
If you are unable to use Wake-on-LAN despite having all of the above settings correctly configured, there may be some additional configuration needed in the BIOS of your specific motherboard or machine. For further information, you will need to contact the computer or motherboard manufacturer for support.