Driver may be a source of problem, specially on Windows 10.
@andrewwignell50
Go to OPTION-2: ( Dongle plugged into Windows Computer.) of following thread.
How To Test If Your DVB-T / Pro Stick / RTL SDR Dongle Is OK
As you have already installed Zadig, skip Step-1 and perform Step 2 & 3 only. This test will check 2 things:
- driver
- dongle
.