hi @yfanthenial, @jayeff i have suffered from this problem after some windows update. this issue irritate me when i play the game. i have applied the tons of the solutions but any kind of solution not working. one day i decided to check the physical connection of the drivers. i changed the location of my SSD to second slot of the motherboard. i dismantled the WIFI & BT driver, and cleaned the connections of the driver, after that i have again installed the physical diver to the mother board. guess what i got the permanent solution. after that WIFI & BT never disappear again.

this might due to the dust and other particles are sucked between them. remove the keys and then remove the lead this might help you.