I have multiple USB devices connected : Logitech Web Cam, Canon Scanner and Logitech wireless mouse and keyboard. They where all working fine until this morning. Now they dont work. Reboot,ed the computer, also unplugged the ud-cam, multiple attempts and permutation, still the same.
I connected all of these devices to the computer using another usb and they work fine.
I did connect a USB-3 flash drive and it works! Go figure.