Colin Snow
There are several ways to wake up a sleeping computer remotely via wireless. One common method is to use a Wake-on-LAN (WoL) feature, which allows you to send a magic packet to the computer to wake it up. This can be done using a smartphone app or a remote access tool such as TeamViewer or NirSoft's WakeMeOnLan. Alternatively, you can use a smart plug that can be controlled via an app, or a tool like R-HUB remote support servers. For Android users, there are free apps available that can wake up a PC from anywhere via the internet. Additionally, disabling the Only allow management stations... option activates the Wake on pattern functionality in Windows, which will wake the computer upon any connection attempts.
Characteristics and Values Table
| Characteristics | Values |
|---|---|
| Wake-on-LAN | Requires a "magic packet" sent from a phone or laptop on the same network |
| Wireless Adapters | Rarely support Wake-on-LAN |
| Wake-on-Wireless-LAN or Wake-on-WLAN | Check computer's documentation or BIOS to see if it's supported |
| Wake-on-LAN App | Install on your phone and redirect a port to port 9 on the PC |
| TeamViewer | Free for non-commercial use, supports multiple OSs, and has mobile device support |
| Remote Support Servers | R-HUB |
| Dynamic DNS Client | Set up an account and register to constantly update your external IP |
| WakeMeOnLan | A NirSoft tool that scans the network and provides a list of devices |
| Depicus | Requires the IP address, MAC address, subnet mask, and port number for the remote PC |
| Mobile Devices | Mocha WOL (iOS) or Wake On Lan (Android) |
| BIOS Settings | Set to power on the PC after power resumed |
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Wake-on-LAN
To use Wake-on-LAN, you need to ensure that your computer and network support it. This may involve checking your computer's documentation or BIOS settings to see if it supports "Wake-on-Wireless-LAN" or "Wake-on-WLAN". You may also need to enable Wake-on-LAN in your computer's BIOS and operating system settings.
Once Wake-on-LAN is enabled, you can use various methods to send the "magic packet" to wake your computer. This can be done using a smartphone app, such as Wake On Lan or WOL Magic Packets Widget, or through software like Chrome Remote Desktop or TeamViewer. To send the magic packet, you will need the MAC address of the computer you want to wake, which is a unique identifying number built into its network interface controller (NIC).
It is important to note that Wake-on-LAN has some limitations. It primarily works within the same subnet, and broadcast packets are generally not routed, preventing its use in larger networks or over the Internet. Additionally, wireless adapters rarely support Wake-on-LAN, so the receiving computer will likely need to be connected via Ethernet.
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Magic Packets
Wake-on-LAN (WoL) is an Ethernet or Token Ring computer networking standard that allows a computer to be turned on or awakened from sleep mode by a network message. The message is usually sent to the target computer by a program executed on a device connected to the same local area network (LAN). It is based on AMD's Magic Packet Technology, which was co-developed by AMD and Hewlett-Packard.
A "magic packet" is a small amount of data specific to the MAC address of the network card. When a computer is in standby mode and receives a magic packet, it will respond by turning on the system. This is very useful for remote control situations.
The magic packet is a frame that is most often broadcast on the data link layer to all attached devices on a given network, using the network broadcast address. The magic packet contains the MAC address of the destination computer. This is an identifying number built into each network interface controller (NIC) that enables the NIC to be uniquely recognised and addressed on a network.
In computers capable of Wake-on-LAN, the NICs listen to incoming packets, even when the rest of the system is powered down. If a magic packet arrives and is addressed to the device's MAC address, the NIC signals the computer's power supply or motherboard to awaken. This has the same effect as pressing the power button.
To use Wake-on-LAN, you need to specify a unique name and MAC address. The tool will then send the magic packet. However, Wake-on-LAN only works on local networks and not on the internet.
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Remote Desktop Access
Wake-on-LAN (WoL)
One method to wake your computer remotely is to use Wake-on-LAN (WoL). This requires you to have a WoL-compatible network card installed on your computer. To enable WoL, you need to access your computer's BIOS settings and turn on the WoL feature. Once enabled, you can use a WoL app on your phone or another device to send a "magic packet" to your computer's IP address, which will wake it up. You will need to know your computer's MAC address and IP address to set this up.
Remote Desktop Protocol (RDP)
Another way to wake your computer remotely is by using Remote Desktop Protocol (RDP). To do this, you will need to open port 3389 on your computer and ensure that the "Allow wake-up only by magic packet" setting is enabled in your network card's properties. With RDP, you can access your computer from another device and send a wake-up signal. However, this method may not work if your computer has been asleep for an extended period (e.g., 48 hours).
Other Options
There are also other tools and methods available for waking a sleeping computer remotely. For example, you can use third-party software such as TeamViewer, which allows you to connect to your PC from various operating systems and mobile devices. Additionally, if you have an Amazon Alexa app and an Echo device on your home network, you can use the WOLSkill to wake your PC by asking Alexa to turn on your computer.
It's important to note that some of these methods may not work if your computer has been asleep for a prolonged period or if you are trying to access it from outside your local network. You may need to experiment with different methods to find the one that works best for your specific setup.
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Dynamic DNS
Dynamic Domain Name System (DDNS) is a useful tool to wake your computer remotely if your internet provider changes your IP address from time to time. This is a common practice among many internet providers, and it can be a hurdle when trying to wake your computer from sleep remotely. Dynamic DNS services monitor the IP address issued by your Internet Service Provider (ISP) via your router and update the DDNS accordingly.
To use Dynamic DNS, you will need to set up an account with a Dynamic DNS client and register an account. You can choose from various Dynamic DNS clients, such as No-IP or DynDNS, or even use the 'dlinkddns.com' service offered by Dyn for D-Link users. After setting up an account, you create a domain entry, such as "mydomain123.dynamicdns.net". You then enter this account information on a device within your home network, typically your router.
From then on, every time your external IP address changes, your router automatically sends the updated information to your Dynamic DNS account. This way, you can always access your home network via the domain name, which is constantly updated.
Using Dynamic DNS, you can send the "magic packet" to the DDNS hostname you've set up, and you won't have to worry about your external IP changing. This is a crucial step in remotely waking up your computer, as the magic packet needs to be sent to a specific IP address for the process to work.
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Wake-on-Wireless-LAN
Wake-on-Wireless LAN (WoWLAN) is a technology that allows a computer to be turned on or woken up from sleep or hibernation mode remotely via a wireless connection. This can be achieved by sending a "magic packet" to the sleeping computer over a local network or the internet.
To enable WoWLAN, your hardware and software must support it. Firstly, your network card or wireless adapter must support WoWLAN. Not all wireless adapters support WoWLAN, and it may be necessary to use a wireless bridge or powerline ethernet adapter as a workaround. Motherboard-integrated wireless adapters are more likely to support WoWLAN, and some Intel adapters are known to support this feature.
Secondly, you must enable WoWLAN in your BIOS/UEFI settings. This can involve enabling specific settings in the Power Management tab of your wireless adapter properties, such as "Allow this device to wake up the computer" or "Wake on pattern".
Once WoWLAN is enabled on your hardware and in your BIOS/UEFI, you can use a WoL Magic Packet Sender solution such as an Android app or a program on another computer. You will need to know the MAC address and IP address of the sleeping computer.
It is important to note that WoWLAN may not work if the computer has been sleeping for an extended period, and there may be challenges with changing external IP addresses. Additionally, Wake-on-LAN may not work over WiFi for some devices, as they may not be able to authenticate and connect to the network before receiving the wake-up signal.
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Frequently asked questions
You can use a "magic packet" to wake up your PC from sleep mode. This can be sent from your phone or laptop. You will need to know your PC's MAC address and IP address.
A "magic packet" is a signal that can be sent to your PC to wake it up from sleep mode. This can be sent via a Wake-on-LAN app, which you can download on your phone.
You will need your PC's MAC address and IP address.
Some examples of Wake-on-LAN apps include TeamViewer, NirSoft's WakeMeOnLan, Depicus, Mocha WOL (iOS) and Wake On Lan (Android).
You can use a smart plug that can be accessed via an app, such as Sonoff or Meross. Alternatively, you can use a hard-wired solution, such as a "tuya wifi computer-power reset switch USB".
