If you have a diagnostic tool (like a Lexia 3, PP2000, or a generic Actia clone) and a part is broken, here are the specific hardware components that often fail or require replacement:
Power management is turning off the USB port. Fix: In Device Manager, expand Universal Serial Bus controllers > Right-click each "USB Root Hub" > Properties > Power Management > Uncheck "Allow the computer to turn off this device." actia psa interface driver