This may occur due to a Windows setting called USB selective suspend
. By default, this setting is enabled. When enabled, it cuts power to idle USB devices in order to conserve power.
This setting can be disabled through Performance Settings
- Go to Power Options via: All Control Panel Items » Power Options » Edit Plan Settings
- Select Change advanced power settings
- Expand the USB Settings tab and disable USB selective suspend settings
Alternatively, this can be the result of an incorrectly grounded device that can result in the device going out of specification, causing your computer to lose connection to the device. To solve this issue ground all inputs to the device as described in the Field Wiring and Noise Considerations for Analog Signals