Computers in Standby, Sleep, or Hibernation mode may be inaccessible via the host software. For Wake On LAN requirements, see How to Wake a Computer in Sleep Mode or Powered Off Using Wake On LAN to ensure that you can wake your computer from Standby, Sleep, or Hibernation mode. If you cannot use Wake On LAN, you can prevent your computer from entering a sleep mode by changing your Power Management settings.

Windows

1. Physically go to the computer that you want to be able to access.
2. On your keyboard, press and hold the Windows key and press the letter R.
3. Type powercfg.cpl and press Enter.
4. Set the option for Sleep or Standby to Never.

   Windows 7 users can use the Change when the computer sleeps option in the left pane.

5. Make sure Hibernation is also disabled.

Mac OS X

1. Physically go to the computer that you want to be able to access.
2. From your Mac Desktop, click the Apple Menu in the top left.
3. Select System Preferences.
4. Click on Energy Saver.
5. Move the slider for Put the computer to sleep when it is inactive for... to Never.

Make sure that the host software is running on the host. You will need access to the host to perform this action.

• Open the LogMeIn Control Panel.
• Check whether the host is Accessible in the top-left corner.
  • If it is Not accessible, switch the host on by clicking the power switch on the host interface.
    
  • If it is Enabled but offline, switch the host off and then back on by clicking the power button twice.

Make sure that the host software is set to run automatically when the computer starts.

To verify this setting on Windows, do the following:

1. Press the Alt and R buttons simultaneously on your keyboard to open the Run dialog.
2. Type services.msc and press Enter.
3. In the Services window, search for LogMeIn.
   
4. Make sure Startup Type is set to Automatic.

   If not, right-click the LogMeIn service and select Properties. On the General tab, select Automatic for Startup type.

To verify this setting on a Mac, do the following:

1. 1. On your Mac, open the Apple menu and select System Settings.
   2. Select General in the sidebar.
   3. Select Login Items & Extensions.
   4. Select Allow apps to run in the background.

Make sure that the computer you want to control is connected to the Internet. The host requires an "always on" Internet connection such as DSL, Cable, or T1.

If certain ports and host components are blocked or prevented from accessing the web, connection cannot be established. For more information, see LogMeIn Pro and Firewalls