I had now months where my sync did not work. Today I found the solution
I can reproduce this error every time:
The moment I press "Sync Device" the "Windows Driver Foundation" is starting and using about 25% of CPU and CRW does not see CRA, neither on USB nor WiFi.
When I kill the process the sync over USB and WiFI starts immediately!
When I close CRW while it tries to sync but is blocked by "Windows Driver Foundation", the process goes back to 0% CPU immediately.
So this is not a coincidence, CRW does something on Windows 10 provoking this action. Is it using the Windows Driver Framework to connect to Android? Then this implementation seems to be buggy.
Proud owner of ComicRack for Windows (Donation) and Android (Full Version)