When I swipe a card through my USB card reader, I hear it beep, but I don't get data into my app or Notepad. This happens after the system sits idle for a while. I can unplug and re-plugin the reader to get it working again.
A. This may be due to the USB ports power saving is triggered. If so, you can follow the steps below to disable the USB Selective Suspend on your PC.
For Vista, select the Disabled option under USB Settings>USB Selective suspend setting
For Win 7 PC and Win 10, select the "Disabled" under USB Settings>USB Selective suspend setting>Plugged In