The Selective Suspend feature of the Windows OS allows the system to save power by putting certain USB ports into a suspended mode.  This power savings mode causes the Xitron USB interface to lose connection with both the rip and the CTP/CTF device.   To recover from the disabled connections the operator is forced to restart the computer and USB interface.  Turning off USB selective suspend allows the rip and the computer to remain up for long periods without losing the connection to the engine.  

To turn off USB selective suspend:


  1. Open Control Panel.
  2. Click on Hardware and Sound.
  3. Click on Power Options.
  4. Under "Preferred plan," click the Change plan settings link for the plan you're currently using. (If you change the settings on the power plan that isn't active, this won't work.)




  1. Click the Change advanced power settings link.





  1. Expand USB settings.
  2. Expand USB selective suspend setting.
  3. Select Disabled from the drop-down menu.




  1. Click Apply & OK.


Once you complete these steps, Windows 10 will no longer power-off USB devices connected to your computer, which can fix any problem you may have because of this feature.

While this guide focuses on Windows 10, USB selective suspend has been around for a long time, and you can use the same steps on machines running Windows 8.1 and Windows 7.