Step 1. Reinstall the keyboard/mouse by unplugging the keyboard/mouse from the control end and then plugging it back.
Step 2. Reboot the PC.
Step 3. In the Auto Scan mode, press [Esc] to exit.
Step 4. If this issue already has, please hold the reset button for about 5 seconds to load default.
Step 5. Try another keyboard/mouse.