Are you using USB 2.0 or 3.0 ports and cables as Arduinos can be very hit and miss with USB 3.0 ?
Changing cables and ports is always a first stop in troubleshooting.
Are you using USB 2.0 or 3.0 ports and cables as Arduinos can be very hit and miss with USB 3.0 ?
Changing cables and ports is always a first stop in troubleshooting.