You can turn on or wake up your staff computer from a shut down or sleep state, from anywhere, at any time when using Remote Desktop Gateway (RDG) to access the network remotely. You can wake up a College Windows or Linux machine, but not a Mac.

Before you can use Remote Desktop Gateway (RDG) you must set up your staff computer to accept it.

Requirements

  • Your staff computer must be a Windows or Linux machine, not a Mac.
  • You need Administrator rights on your staff computer to be able to do this. If you don't have Administrator rights, contact the ICT Service Desk to get set up.

Instructions

1. Set up your computer for wake up

Instructions for waking a College PC

Windows 7

To Wake your Windows 7 College PC, follow these steps:

  1. Click the Start button in your desktop toolbar.
  2. Right click on Computer and select Properties.
  3. Click on Device Manager. If you receive the error message You do not have sufficient privileges, contact the ICT Service Desk.
  4. Find your network adapter in Device Manager and double click it.
  5. Select the Power Management tab, and ensure that Allow this device to wake up the computer and Only allow a magic packet to wake the computer are ticked. If you cannot select these options, Wake-on-LAN may be disabled on your computer. Contact the ICT Service Desk for it to be enabled in the BIOS.
  6. Click OK, close Device Manager and the System windows.

Your computer is now configured for you to wake it up remotely using RDG.

You only need to follow these Wake my PC instructions once. Once you've done that,  you can wake your PC up anywhere, anytime by going to: Wake My PC

Linux

To Wake your Linux College PC, follow these steps:

  1. Open a terminal window and switch to root.
  2. Run:

    ethtool $NIC

    # ethtool eth0

    Settings for eth0:

                   Supported ports: [ TP MII ]

                   Supported link modes:   10baseT/Half 10baseT/Full

                            &nbs p;              100baseT/Half 100baseT/Full

                   Supports auto-negotiation: Yes

                   Advertised link modes:  10baseT/Half 10baseT/Full

    < span style="color: #000000;">                             ;       &nbs p;   100baseT/Half 100ba seT/Full

                   Advertised auto-negotiation: Yes

                   Speed: 10Mb/s

                   Duplex: Half

                   Port: MII

                   PHYAD: 1

                   Transceiver: internal

                   Auto-negotiation: on

                   Supports Wake-on: g

                   Wake-on: d

                   Current message level: 0x00000007 (7)

    The

    Wake-on:

    setting should be "g" - if it is not, run

    ethtool -s $NIC wol g

Your computer is now configured for you to wake it up remotely using RDG.

You only need to follow these Wake my PC instructions once. Once you've done that,  you can wake your PC up anywhere, anytime by going to: Wake My PC

2. Wake your computer up

You can wake your PC up anywhere, anytime by going to: Wake My PC

After clicking on the link, wait while your computer wakes up. This process can take up to five minutes.

3. Go to Set up a Remote Desktop Gateway (RDG) connection 

Pick the correct instructions for the operating system of your personal machine.

4. Finish the session

Once you have finished your session, you can select the Sleep icon again to put your PC back to sleep (press the Alt and F4 buttons on your keyboard to select how you want to turn off your PC).

Need help?

Browse the FAQ below or contact the ICT Service Desk if you experience any problems.

FAQ

FAQs

I clicked the 'Wake up this computer' link next to my computer’s name, but I still can’t access it.

Wait for a few minutes to give the machine time to boot up. Remote Desktop Gateway (RDG) is one of the last services to start in Windows when the computer turns on.

If two minutes pass and you still can’t access it, try to wake it up again, as some computers go back to sleep immediately after being woken up for the first time. If this doesn’t work, contact the ICT Service Desk.

My staff computer doesn’t go to sleep by itself. What should I do?

Ensure that you have not opted out of the power saving scheme.

Meanwhile, put your computer to sleep by double-clicking the green Sleep icon on your desktop or by selecting the Sleep option from under the Shut down options in the Start menu. If you do not see the Sleep icon on your desktop, restart your computer once.

Does this service work on all Linux machines?

The Linux operating system has not been fully tested with this service yet. However, the service has worked successfully on some types of Linux.

I followed the instructions but I cannot make the VPN connection work from home. Can I use this service?

You do not need to use VPN to wake up your computer.

Once you’ve set the service up on your staff computer, you just need to go to www.imperial.ac.uk/wakemypc and then Set up a Remote Desktop Gateway (RDG) connection.

I don’t know which computer listed on the Wake my PC page is my main staff computer/my computer isn’t listed.

All of the computers that you are the ‘primary owner’ or ‘custodian’ of will be listed on this page, so it may be a long list.

If you go to the Start menu on your staff computer and select My Info from the options, you will find information about the machine, including asset number and computer name.

Alternatively, you can contact the ICT Service Desk to identify your staff computer, add it to your list or remove the computers for which you are no longer the custodian.

My staff computer doesn’t stay in Sleep or Hibernate mode. It wakes up immediately after it does to sleep. What can I do?

Make sure you follow the instructions above closely, especially the step that sets your computer to wake up only by a ‘magic packet’.

I’m not sure if my staff computer is on or off. Will I be able to use the service if it’s already awake?

No, this request will only turn your computer on when’s it off or sleeping. If it’s already on, it will have no effect.

I’m going away for a while. Will I still be able to wake my staff computer up when I’m back home?

You can wake up your machine up to 45 days after you last switched it off.

If it has been more than 45 days, it won’t work and you will need to turn on your machine and put it back to sleep again.

How do I turn off my machine after using it remotely?

Display your desktop by closing or minimising all of the windows, then press the Alt and F4 buttons at the same time. This should display the Shut Down Windows screen, where you can select the appropriate option.

Alternatively, use the green Sleep button on your desktop to put it to sleep.

Are there areas in College where this service doesn’t work?

The areas listed below are locations in College where we know that Wake my PC doesn’t work. However, this may not be a complete list.

  • Gosman’s Group – Level 6, Mech Eng
  • Mining research – Royal School of Mines
  • Electrical Engineering – Level 5 Firewalled
  • Cassini group – Level 7, Huxley
  • Photonics – Level 6, Blackett

When I turn my staff computer back on after using this service, the screen doesn’t come back to life. What can I do?

Try pressing Ctrl - Alt – Del (which will bring up the password entry screen, even though you won’t be able to see it), enter your password carefully and press the Return button on your keyboard.

Your screen should come back to life. However, if you are using a wireless mouse or keyboard, this solution might not work. If this doesn’t work, contact the ICT Service Desk.