If your problem hasn't been solved yet I recently had your issue.It was solved by doing a full uninstall. getting the folders from %appdata%  , %programdata%  , program files, program files 86 and deleting the things in registry. I restarted then made a new user account and then reinstalled awcc on that account. My lights are working again on the original account afterward and I was able to delete the created user with no repercussions. I did have to do a repair on the application though to make it appear in my original account.
My x17 R2 stood in sleep mode at night. Morning when I opened it =Keyboard not workingRGB lights not working Power button light not workingAlienware external lighting not workingI tried everything =1. Reinstall drivers2. Did all the steps from the tutorial video3. Reinstalled even WindowsNothing helped. Keyboard not responding RGB lights not working.Please help
x17 R2, keyboard and all RGB lights not working