I have seen that, especially with Bluetooth speakers/headset. I researched it and found no solution that worked for me. It's no better under Windows 10.

>Anyone would know what could be a factor that I am loosing my bluetooth connectivity after a certain period of time. This has done that twice today. I assume the interval was also the same.
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>When it happens, I have to go in "PC and devices" and click Bluetooth. Then, it refreshes and I am ok to continue.