The Wake on LAN feature allows you to turn on the computer via the local network without pressing the physical power button. With the settings made in the BIOS and a compatible application installed on the phone, the system, which is turned off, can be started with the wake-up signal sent from a device connected to the same network. With Wake on LAN, the computer can be turned on over the network. Wake on LAN is a practical feature used especially for test systems, remotely located cases, hard-to-access computers and installations that do not require constant physical intervention.
In this method, the computer’s Ethernet controller listens to the special wake-up packet coming from the local network even when the system is turned off. When the correct signal reaches, the system turns on and the user can start the computer without pressing the power button. The first step for this process to work is done on the BIOS side. After entering the motherboard’s BIOS screen, you can move on to the advanced settings section.
In the system used in the example, Advanced Mode is opened with the F7 key. Then go to the APM Configuration section under the Advanced menu. When the Power On By PCI Express option here is Enabled, the Wake on LAN function becomes active. If this option is left Disabled, it is not possible to turn on the computer over the network. The Enabled option allows the Ethernet controller to detect the wake-up signal coming from the local network.
Thus, even if the computer is turned off, the packet sent over the network connection can run the system. You can install the Wake on LAN application for Android from here. The second step is done on the phone side. Computers connected to the same local network are scanned via the Wake on LAN application, which can be installed on Android devices. When the plus button is pressed in the application, the IP addresses of the devices on the network are listed.
Here, the user selects the correct computer that he wants to turn on, names the device and adds it to the application. After this process is completed, the user can start the computer by touching the Wake on LAN button in the application. The system turns on without a physical power button connected to the case, only with the wake-up signal sent over the network. In this method, the phone and the computer must be on the same local network.
The application sees the devices on the same network and sends a wake-up packet to the relevant computer. Therefore, in standard usage, the transaction takes place over the local network, not over the internet. Additional network settings or different solutions are required to remotely turn on the computer from a different internet connection. Wake on LAN works as a one-way process. The computer does not shut down when the same button is pressed a second time on the phone.
This feature is only used to turn on or wake up the computer. The shutdown process continues to be done through the operating system. For the feature to work, the motherboard must support Wake on LAN, the relevant setting must be turned on in the BIOS, the computer must remain connected to the network via Ethernet, and the correct device must be selected in the phone application. When the settings are made correctly, the computer can be started with a single touch without pressing the power button.
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