Please see below for trouble-shooting tips. If the following tips do not resolve, feel free to contact technical support via telephone, chat or email for assistance. 

Step 1. User another USB port, check if the device shows up. Use a USB 3.0 port if possible.
Step 2. Check if there is a USB hub or KVM switch in between the PC and the peripherals
Step 3. Check any RGB control SW or peripherals control SW.
Step 4. Shift-Shutdown the PC and restart
Step 5. Update to the latest NGENUITY (Beta) version