Recently upgraded to Intel Wireless Bluetooth driver version 21.40.0 and my Cowin E7 headphones would no reliably connect. Downgrading to 21.30.0 solved the problem.

[AlHill]

What operating system and version? WIndows 10, 1903?

What is the model number of your device/motherboard?

What is the model number of your wireless card?

Doc

[DDavi73]

OS: Windows 10, 1809.

Device: HP ZBook Studio G4 with Intel CM238 chipset.

Wireless Card: Intel Dual Band Wireless-AC 8265 (w/ Bluetooth).

[AlHill · Accepted solution]

You should be using HP for assistance. HP is solely responsible for your support.

Also,. you should be using the drivers from HP.

Doc