I have an external Logitech keyboard/mouse connected via wireless USB connections to the new surface pro dock. Sometimes, when I connect the dock to my pro 4, and turn it on, my external keyboard/mouse will not work (unresponsive). This doesn't happen all the time, sometimes my keyboard/mouse get detected and I can use them just fine. However, when it does not detect them, I have to take out the USB connections then re-plug them back in the dock then they will work.
I have the latest driver updates for everything, latest windows 10 updates. Everything is up-to-date. I tested by connecting the mouse USB dongle directly to the surface pro 4 and the keyboard dongle to the dock. The mouse always worked while the keyboard did not always work so I know it's the dock. Is this a bug, or is the dock defective?