Need to enable Wake on lan

Posted on 2007-08-10
Last Modified: 2012-06-27

What is Wake on lan and how should i implement and some details about how this works.

Question by:bsharath
    LVL 26

    Accepted Solution

    Wake on LAN (WoL) support is implemented in the motherboard of the computer. The motherboard must have a WAKEUP-LINK header onboard and connected to the network card via a special 3-pin cable; however, systems supporting the PCI 2.2 standard coupled with a PCI 2.2 compliant network adapter typically do not require a WoL cable as the required standby power is relayed through the PCI bus. Most modern motherboards with an embedded Ethernet controller also support WoL.

    Wake on LAN must be enabled in the Power Management section of the motherboard's BIOS. It may also be necessary to configure the computer to reserve power for the network card when the system is shut down.

    In addition, in order to get WoL to work it is sometimes required to flash this feature to the card. You can do this in Windows from the properties of the network card in the device manager, on the "Power Management" tab. Check "Only allow management stations to wake up the computer" to make sure it does not wake up on every single network activity that occurs.

    More Info:

    Fatal_Exception comment on Question  ID: 21452072.

    Here is a tool I have used called WakeOnLanGui:

    Wake On LAN from hibernate or off mode

    Check whether the network adapter on the target computer supports Wake On LAN. Enable the function in the network adapter settings or in any special management program that came with it. If the network adapter is integrated on the motherboard, enable Wake On LAN in the motherboard BIOS.

    Download and install WakeOnLanGui from

    On the target computer, i.e. the one to be woken up, open a command line window and enter the command: ipconfig /all
    Note the physical address (sometimes called MAC = Media Access Control address) of your Ethernet adapter from the ipconfig output. Example: 00-E0-18-90-A5-44

    Run WakeOnLanGui on the computer from which you want to wake the other computer and type the physical address into the proper field in WakeOnLanGui. The other two fields are filled with, and the port is 7 or actually any other port. Port 9 is sometimes used.

    Shut down the computer to be waked.

    Test WakeOnLanGui.

    If you need the opposite function as well, to shut down a computer remotely, have a good look at

    This program, PsShutdown, member of Sysinternals' PsTools group of freeware utilities, works like a charm.

    To shut down and power down a remote computer named "computername", enter the command:

        psshutdown -k -f -t 00 \\computername

    -k indicates shutdown and powerdown, -f means force all running programs to close without asking, and -t 00 means don't wait (wait zero seconds) until shutting down the computer named computername. (Don't miss the required space between -t and 00.) This utility can do several other things as well, like sending the target computer into hibernate mode or rebooting it.
    LVL 12

    Expert Comment

    With wake on LAN you can power on a pc remotely by sending a wake on LAN packet to its network card.
    You can often turn it on by opening the properties of the network card in device manager and enabling 'Wake up'.
    Some computers, like DELL, also have an option for this in the BIOS.
    LVL 26

    Expert Comment


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