K70 Not Responding Help

My Corsair Vengeance K70 works but when I use my Corsair Venegeance 2000 (wireless headset) it then doesnt work when sound is being played through the headset. It works on BIOS switch mode but not Mode 1. Iv tried everything like MoBo drivers and uninstalling the keyboard. Its really annoying as I cant play games because I use my headset.



I will be greatful for some help thanks.



-Ryan.