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When I pair my bluetooth headphones (Bose QC 35) to my MBP running macOS Mojave, they sometimes disconnect a few seconds later. I try turning them off and on again, turning off bluetooth on my phone (in case it's competing for a connection or something), but none of that helps. The only solution I've found is to restart my computer which is really not ideal.

Ideally I'd like to find the cause of this, but it would also be really helpful to find a workaround. For example, is there some kind of driver I could try restarting without having restart my whole computer?

  • Just a friendly reminder - if you have an answer or a troubleshooting step - make that an answer please. Comments are for clarifying the question and not for floating potential answers or actual answers. – bmike Dec 2 '18 at 22:24
  • @bmike, And if it turns out to be a completely incorrect answer? Should we delete it afterwards? – Iulian Onofrei Feb 7 '19 at 13:22
  • @IulianOnofrei that would be an excellent question on Ask Different Meta – bmike Feb 8 '19 at 1:18
  • I have the same problem on Catalina. Before upgrading to Catalina it was working fine. Ufter uğgrade there were glitches and now it started to disconnect after 15-20 seconds. – Olcay Ertaş Nov 11 '19 at 8:32
  • +1 because I have the same problem, AFTER upgrading to Catalina. I've tried clearing PRAM and deleting the bluetooth plist file, as recommended here, but had no luck: ikream.com/2019/11/… – mix3d Nov 18 '19 at 18:53
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Try resetting the Bluetooth module.

Shift-Option click the BT menu bar item > Debug > Reset the Bluetooth module.

  • For me the reconnection of the headset from Bluetooth -> Bose QC35 -> Connect is enough. – onik Feb 20 '19 at 15:03
  • Didn't work on cataline with Sony WH-CH500 headphone. – Olcay Ertaş Nov 11 '19 at 8:34
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    On Catalina, it still disconnects after a longer timeout now, like 2 minutes. – Peter Nov 14 '19 at 9:56
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I tried all these things, but they didn't work. Eventually switched my wifi to 5GHz and the problem went away. Ref: Bluetooth and WiFi interfering with one another since Yosemite

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The Bose Connect app on iPhone is my go-to for this situation. Typically the issue is that my QC 35's are connecting to other devices (Apple TV, iPad, etc.) instead of my Mac and the app allows me to disconnect the headphones from that device and then connect them to my Mac (all from within the app!).

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In my case I had my headphones connected to charge via the keyboard despite the lack of power. I think this may have confused the blutooth as once I connected back to the keyboard and disconnected after the low power warning went away then it could connect as normal?

I hope this helps someone else.

  • I think the error has something to do with the headphones connecting to charge via USB at some point. If anyone else can confirm let me know, but I seem to be able to re-create the error now at will. – Joseph Astrahan Feb 20 '19 at 6:07

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