I play and run a roll20 campaign and use discord for audio. (no video) The keyboard I have is connected to the computer via usb. Invariably during the game, I find that I can no longer type information into fields. Like changing HP. Sometimes it is push to talk. I've needed to assign another player GM status to help take care of changing HP.  Any ideas why keyboard stops working. I sometimes have to reboot the computer to get it working again. Not a big deal as a player but a problem as the DM.