capslock key is unresponsive

so i'm currently using a red dragon mechanical keyboard k552-r, and the issue i'm having is my capslock led toggles on and off as normal but the key itself is unresponsive. So, to sum it up: I can't capitalize anything less I press shift. I've tried multiple keyboards and i get the same problem so i'm sure it isn't the keyboard. Is there anything you guys can help me with? I apologize in advance if this question has been asked. P.S the caps key sometimes works, and i'm running windows 10.