Hi,
Probably there is not enough power getting to both. If you unplug a third device, both might work.
The hard disk should have an AC Adapter that plugs into the wall, you will need to use that, as the USB interface does not provide enough power for disk drives.
Probably there is not enough power getting to both. If you unplug a third device, both might work.
The hard disk should have an AC Adapter that plugs into the wall, you will need to use that, as the USB interface does not provide enough power for disk drives.