Question about ASUS ROG Claymore

I used to have the same problem after booting up (could not log in because the keyboard was not active). Often the USB mouse had the same problem at the same time. At that time, a normal restart of the PC helped (as there were probably general problems with controlling the USB). Unfortunately, I can't offer you any help except that it works for me now without any problems despite the latest Win10. So it's probably an individual problem with other PC components.

there may also be a hardware defect... my first claymore was DOA... the second one works fine...

try to test the KB on different systems quickly and if it doesn't make a difference i.e. still doesn't work then I would try to claim the warranty