Windows 10: Bluetooth audio stuttering when too many devices are connected

A few months ago I bought a Soundcore Flare 2 bluetooth speaker and I'm 80% sure this issue didn't occur back then. I usually hook up my surround system via toslink, but this time around I've been using the Flare 2 again. And I'm suddenly getting heavy audio stutters as if the speaker was broken. It's having interruptions every 1-2 seconds, completely unusable. I tried removing and reconnecting several times, even a factory reset, I uninstalled and reinstalled my bluetooth adapter, but all to no avail.

Only by accident I figured out something odd. The stuttering instantly disappears when I disconnect either my Microsoft modern keyboard or modern mouse. Connecting the keyboard through USB solves the problem too, as I guess this disables the bluetooth connection.

So it seems like my system has trouble maintaining a stable bluetooth connection for more than two active devices. Could it be some powering issue? The speaker works well with all other devices of course, including my hackintosh partition where I can pair anything without getting these stutters.

I have a Fenvi T919 bluetooth adapter (I have no onboard bluetooth to test with) and the official Windows 10 drivers from the manufacturers website are the one and only drivers for this card, however I don't believe they are faulty.

Only thing I didn't do yet is a complete fresh install, but before that I'd like to ask for some further advice. Do you have any ideas?

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:)

 

Bluetooth Audio stuttering

Recently upgraded my PC and reinstalled Windows 10.

I run my main audio through a Razer Leviathan bluetooth speaker and a headset through the optical connector for comms.

Never had any issues until recently, where any audio stutters when coming through the Bluetooth speaker. There's no stutter through the headset for any audio (comms, music, youtube, netflix etc) and there's no stutter if I connect the speaker to another
device such as my phone and hold it at the other side of the house. I recently bought a USB Bluetooth adapter in case it was something faulty on my new motherboard, but the issue persists with this device too.

I've tried reinstalling the drivers and reconnecting for Bluetooth and the speaker, but the problem persists. If I move the speaker, sometimes the signal cuts out entirely or it can be fine, but it has not been moved from the same spot on my desk prior to
the issue occurring so it's not an issue of the location of the speaker. There's no WiFi (cabled and disabled the WiFi option) and just a desk surface for the signal to pass through. Again, it could connect to my phone on the other side of the house and play
audio fine.

I'm thinking its a software/driver problem at this point.

Any suggestions would be helpful.

 

Bluetooth audio stutters if multiple devices connected

Audio over Bluetooth stutters if both a Wireless controller (Sony cuh-zct2u) and Bluetooth headset (Sony WH-1000XM3) are connected, but does not stutter if only the headset is connected. This also occurs when tested with different
Bluetooth headsets (Apple A1573). Host machine is using a Murata 339S00458 Bluetooth Controller using standard Microsoft Drivers on Windows 10 2004 (19041.264).

This issue does not occur with the same hardware when running Arch Linux 5.2 or MacOS 10.14.6.

Is there a known fix for this?

 

Bluetooth audio stutters if multiple devices connected