For some odd reason, some Windows 10 update or software of some sort seems to have suddenly borked my Bluetooth connection/s, whereby any Bluetooth headset and/or speaker would disconnect and reconnect repeatedly from my Bluetooth 5.0 radio (that came with the after-market Intel AX200 Wi-Fi 6/802.11ax NGFF M.2 card I installed on my PC)… I do not have other Bluetooth device types to test, so cannot say if other devices would have also experienced the same connect/disconnect cycle.

Nevertheless, I quickly found a solution: disabling power saving on the “USB hub” devices the “Intel Wireless Bluetooth” device was hanging off… (Assuming you have administrator rights/permissions on Windows…)

To do so:

1. run “Computer Management” (e.g. search for it, or right click on the “This PC” object in Windows Explorer on the left navigation tree and select “Manage”)
2. under “Computer Management (Local)”, select “Device Manager”
3. change the “view” to show “Devices by Connection”
4. drill down on (i.e. open) every object (starting with the “ACPI x64-based PC”) and find the “Bluetooth” device
5. right click on any/all “Host Controller” and/or “Hub” devices above it and navigate to the “Power Management” tab
6. uncheck the box that says “Allow the computer to turn off this device to save power” 
7. click “OK”