Herbie Murray
TeamViewer is a useful tool that allows users to wake a computer from sleep mode remotely. This can be achieved through a feature called Wake-on-LAN (WoL), which is an industry-standard protocol for reactivating computers from low-power or powered-down states. To enable WoL, the target computer must meet specific configuration requirements, and the settings must be enabled. Once activated, users can take full control of the device, including switching it back to sleep mode when tasks are complete. While TeamViewer provides a convenient solution, its settings and operations are known to be complicated and not very user-friendly. Nevertheless, with the right setup, it offers a powerful way to manage and access computers across a network remotely.
How to Wake a Computer from Sleep Using TeamViewer
| Characteristics | Values |
|---|---|
| Name of Feature | Wake-on-LAN (WoL) |
| Functionality | Allows users to power up computers from anywhere |
| Compatibility | Requires TeamViewer Remote solution with built-in WoL support |
| Target Device Status | Can be in low-power, hibernate, or sleep mode |
| Target Device Settings | WoL settings must be enabled on the remote computer |
| Target Device Requirements | Sufficient power to keep the network interface card (NIC) receptive in standby mode |
| Method | Sends a "magic packet" to the NIC of the target device |
| User Interface | Requires disabling the new TeamViewer interface for easier operation |
| Steps | 1. Launch TeamViewer; 2. Go to "Settings"; 3. Click "Account Assignment"; 4. Enter TeamViewer credentials; 5. Click "Configure" next to WoL; 6. Add TeamViewer ID of a computer on the same network; 7. Navigate to "Devices" and select the target device; 8. Click "Wake" |
| Alternative | AnyViewer – a free, user-friendly, and secure remote desktop software |
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What You'll Learn
Wake-on-LAN (WoL)
TeamViewer has built-in Wake-on-LAN support, which means that users can maintain machines for extended periods, even when they are turned off or in low-power mode. WoL can be used to access work applications and files from home, for maintenance, support, monitoring, and reconfiguration. This can be particularly useful for IT administrators, who can complete essential work outside of regular working hours, reducing business disruption.
To use WoL, the target computer must meet certain configuration requirements. The remote computer must have its WoL settings enabled, and the network interface card (NIC) must be WoL-enabled and configured to receive power while the rest of the device is powered down. The NIC will then be receptive to incoming communications in standby mode.
To wake up a target device, WoL software broadcasts a small data signal called a "magic packet" to the NIC of the target device. This packet contains the MAC address of the destination computer, enabling the NIC to be uniquely recognised and addressed on a network. The magic packet is designed to be processed quickly and easily, using very little power. When the NIC receives the magic packet, it checks that the information is correct and then signals the computer's power supply or motherboard to wake up. This is the same as pressing the power button.
There are some limitations to the Wake-on-LAN feature. It can only be used to switch computers on, and it cannot power them off. Additionally, it does not bypass password and other security measures.
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TeamViewer ID
To wake a computer from sleep mode using TeamViewer, you must first launch TeamViewer on your computer and locate the "Settings" icon in the left panel. Find "Account Assignment" under the "General" option and click "Assign to account". Enter your TeamViewer account credentials and click "Assign". Then, click "Configure" next to Wake-on-LAN (WoL) and add the TeamViewer ID of a computer that is on the same local network and is always running. After entering the ID, click "Add" and select "OK".
Now, navigate to the "Devices" section and select the target device you want to wake up. Select "One-click control" to quickly wake up the sleeping device. To complete the process, enter your computer password to enable unattended remote access.
Alternatively, if the computer you want to connect with does not have a public IP address, you can wake it up by sending a message via another computer on its network. For this method, the other intermediary computer must be turned on and TeamViewer must be installed and configured on it. Once your target device is in wake mode, TeamViewer Remote gives you full control of it, including the ability to switch it back into sleep mode when any task is complete.
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Network settings
To wake a computer from sleep mode across TeamViewer, you can use the Wake-on-LAN (WoL) functionality. WoL is a networking protocol that allows you to wake up a remote computer by sending a "magic packet" to its network interface card (NIC). Here are the steps you need to follow, focusing on the network settings aspect:
- Ensure that the remote computer you want to wake up has its WoL settings enabled. This means that the computer's NIC must be configured to remain powered and receptive to communications even when the rest of the device is in sleep mode or powered down.
- On your local computer, start TeamViewer and navigate to the main menu. Click on "Extras", then "Options". This will open the TeamViewer options dialog box.
- In the dialog box, select the "General" category. Under "Network settings", you will see the "Wake-on-LAN" option. Click "Configure…".
- In the Wake-on-LAN dialog, you have two options:
- TeamViewer IDs within your network: If you choose this option, you will need to enter the TeamViewer ID of the computer you want to wake up. Click on the "TeamViewer IDs within your network" option button, then enter the TeamViewer ID in the corresponding field. Click "Add" and then "OK".
- Public address: If the computer you want to wake up has a public IP address, choose this option. Enter the fixed IP address or DNS name of the computer in the "Address" field. If you select this option, you may also need to configure your router. Refer to your router manual for instructions on setting up port forwarding to the local IP address of the computer you want to wake up.
Once you have entered the necessary information, you can now wake up the remote computer via its TeamViewer ID or public address.
Note: For WoL to work, the remote computer must be connected to a power source, have an internet connection, and its network card must support Wake-on-LAN. Additionally, if the computer does not have a public IP address, you can still wake it up by sending a message via another intermediary computer on its network, as long as that computer is turned on and has TeamViewer installed and configured.
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Power consumption
Wake-on-LAN (WoL) is a computer industry standard protocol for reactivating a computer from a low-power or powered-down mode. WoL allows you to power up computers from anywhere, giving you full wake-up, remote access, and control capabilities all in one solution. This on-demand wake-up capability allows you to keep power consumption to a minimum.
To enable WoL, the target computer must be configured to be supplied with power and capable of receiving broadcasted "magic packets". The magic packet is a small data signal designed to be processed quickly and easily by the NIC using very little power. It contains a header and the target device's media-access-control (MAC) address – a unique identifier assigned to each NIC. When the WoL-enabled NIC receives the magic packet, it checks it for the correct information.
To enable WoL on a Windows computer, you need to access the BIOS setup by pressing a specific key (such as F2 or Delete) during the boot process. Once in the BIOS setup, open the Power tab and enable the Wake-on-LAN option. Save and exit the BIOS setup. Additionally, you can enable WoL in the Windows Control Panel by navigating to Device Manager > Network adapters, right-clicking the network card, selecting Properties, going to the Power Management tab, and enabling the "Allow this device to wake the computer" option.
For Macs, the process is slightly different. Start by opening the System Settings, clicking on Save Energy, and then activating the "Wake for Wi-Fi network access" option in the Power Supply tab. It's important to note that WoL only works with Macs in sleep mode, not when they are fully powered down, as Apple doesn't allow this.
With WoL enabled, you can use TeamViewer to wake up a remote computer. TeamViewer offers built-in support for WoL, allowing you to maintain and control machines even when they are turned off or in low-power modes. To use WoL with TeamViewer, you can enter the TeamViewer ID of the target computer in the Wake-on-LAN options. Alternatively, you can enter the computer's fixed IP address or DNS name and the corresponding UDP port.
By leveraging the capabilities of Wake-on-LAN and TeamViewer, you can efficiently manage power consumption and remotely control computers, maximizing convenience and minimizing disruptions to your operations.
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Configuration requirements
To wake a computer from sleep mode using TeamViewer, the device must meet certain configuration requirements. Wake-on-LAN (WoL) is a technology that allows a powered-down or sleeping computer to be remotely reactivated by sending a "magic packet" over the network.
To enable WoL, the target computer's NIC must be configured to be supplied with power and capable of receiving these magic packets. The NIC configuration can vary depending on the type of card and operating system. For example, Windows and Linux PCs can be woken up from sleep and hibernation mode, as well as from being fully powered down, as long as the hardware supports WoL.
To configure WoL on a Windows PC, you must first enable WoL at the hardware level in the computer's BIOS. This can be done by rebooting the PC and pressing a specific key (usually Delete, F2, or another function key) at the boot screen to access the BIOS menu. Once in the BIOS menu, locate the WoL option, which may be found in the sleep and wake settings or under a similar heading. Toggle the setting to "Enabled".
Additionally, you may need to adjust the power options in the BIOS or in Windows' Control Panel under "Hardware and Sound" > "Power Options". In some cases, you may need to disable the computer's fast startup feature for WoL to work.
For TeamViewer specifically, you will need to launch TeamViewer on your computer and navigate to the "Settings" icon. From there, go to "Account Assignment" under the "General" option and click "Assign to account". Enter your TeamViewer account credentials and click "Assign". Next, click "Configure" next to Wake-on-LAN and add the TeamViewer ID of a computer that is on the same local network and always running.
Finally, depending on the device type, WoL set-up on a PC may require configuring the device's BIOS (Basic Input/Output System). This involves checking if there is an option to activate WoL in the BIOS. If not, refer to the motherboard's manual to ensure that it supports WoL.
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