I had the same thing happen about 3 weeks after I got my R10 with Ryzen 5 3500. With help of Dell, I opened Device Manager and found a yellow exclamation under Universal Serial Bus Controllers - Unknown USB Device. When we right-clicked and uninstalled that unknown USB device, the problem cleared right up within 30 seconds.
Hey! Just wanna share my experience 3 days after I purchased my alienware ryzen7 2080 super. It happened one night I was playing a game using my xbox controller and my bluetooth got disconnected I thought the battery just ran out but turns out the bluetooth was actually gone/disconnected/undetected/uninstalled.  The bluetooth toggle was nowhere to be found so I went to search and found out to my surprise I'm not the only one having this issue even old and previous models both desktop and laptops alienware and inspiron did have the same issue. Anyway, going through the results of my research they mostly say that I might need to update and install drivers from support assist once everything is downloaded and installed restart then go to settings > updates and security > check for updates and again once everything is installed restart again your device. Check if you have your bluetooth toggle back on from settings > bluetooth and other device and if you still dont have it click the GET HELP hyperlink found on the right side of your screen[IMAGE]if your bluetooth toggle is still nowhere to be found click this and type in missing bluetooth. the automated chat system will guide you through and. Once you get to the point were you will be asked to close all programs hold the power button for 10sec and unplug your desktop for 30sec. then youre on the right track. The automated chat system will guide you through just type in missing bluetooth. Once you get to the point were its asking you to press power button for 10sec and unplug your deskop for 30sec then you're on the right track. If you still dont have your bluetooth toggle button after you turn on you device go back again to settings > bluetooth and other device and click the get help hyperlink so that you can get an agent will help you out. Hope this helps, I have no knowledge on computers or anything this is the simplest way for me and going through the results of my research was a bit overwhelming as I have no background for technical stuff.  
Aurora R10, Bluetooth missing, #2