Initially, this was passing through a basic USB-A hub connecting to a Microsoft Surface Dock connected with the dock connector to the Microsoft Surface. Realizing this, I tested again with the Key Croc connected directly to the USB-A port on the Surface with the same Lenovo keyboard. When I put the Surface to sleep, I had the same result. There was still activity with the LEDs (NumLock, CAPS Lock) on the keyboard and key strokes were picked up by the Key Croc passing to C2, but nothing passing to the PC. One additional oddity that may or may not be relevant was that the NumLock LED remained li