If you find that your teensy or any atmel stop connecting to PC with windows 10 2 days ago. No event on usb port, any usb 2.0 3.0 hub.
Dont take iron as I ))) i have 2 hand made boards with at90usb1286 from time of my ps3 and 2 PC with win10Pro testmode and win10LTSC testmode.
I check both boards , they was as always, 2 knok knok to tx all good chip locks, simple test with voltmeter ))
Its not drivers, it is not hardware, it is M$ fix Bluetooth that is working in debug mode (i search for it for a long))
To fix problem. Go to control panel, programs and apps, manage windows update, and delete KB4503327.
I dont know why but after that update my boards was gone from devices, any drivers reinstall nothing.
And of course in settings windows update turn off updates. for now.
Dont take iron as I ))) i have 2 hand made boards with at90usb1286 from time of my ps3 and 2 PC with win10Pro testmode and win10LTSC testmode.
I check both boards , they was as always, 2 knok knok to tx all good chip locks, simple test with voltmeter ))
Its not drivers, it is not hardware, it is M$ fix Bluetooth that is working in debug mode (i search for it for a long))
To fix problem. Go to control panel, programs and apps, manage windows update, and delete KB4503327.
I dont know why but after that update my boards was gone from devices, any drivers reinstall nothing.
And of course in settings windows update turn off updates. for now.