Canon imagerunner 1435if driver free downloadJul 26, 2019 · I just purchased a surface dock for my surface book 2. Intermittently, the dock will do a quick cycle (my term) and during that quick 2-3 sec, all peripherals stop functioning (keyboard, mouse, headset). And then they come back. I have updated the firmware on the dock. There does not seem to be any particular event that causes this "cycling".