NIStune Type 1 Diagnostics - Manual (Page 4)

The ‘Nistune USB Communications’ or ‘Nistune Type 1 board’ device should show up here as working. If not
then reinstall Nistune and ensure the drivers have been selected for installation.
If driver has previously been installed and doesn’t work (it might have an exclamations mark against it) then
reinstall the drivers. Do this by clicking on Properties and then Reinstall Drivers. Point to the driver location
where you installed Nistune to (usually Program Files (x86)\Nistune)
Another option is to uninstall and reinstall the driver by reinstalling Nistune.