Playing Battlefield 4, keyboard was working fine, round ends, next round begins and I had no keyboard control. Couldn't do anything, Had to reboot computer, after reboot all is fine. Never had this issue before the "Fall Patch". Keyboard seems fine out of game??
Thanks.
Hope this helps, because it had driven me nuts, tried every suggestion on this site and some others. My problem ended up being the unifying receiver on my logitech keyboard and mouse. I had it installed in a rear usb port and never had the first issue with either the keyboard or mouse until BF4, so for most things it works fine there but with BF4 had lag and freeze issues... FIX (at least for me): move the unifying receiver from the rear of the tower, closer to the keyboard. I used the USB extension hub that came with the k/m combo and installed in the same rear port. All is fine now...
