Big Sur Bluetooth automatically connects

Hi,

In Big Sur my Macbook Pro 2015 retina automatically connects to unknown Bluetooth devices and I can't unpair them or block them.

For instance 53-3D-49-93-A5-3A is an unknown device, once this is connected I loose my mouse and keyboard inputs. This is very frustrating. There is no unpair option only the X. After I disconnect then again it automatically connects to another random Bluetooth device. I have no idea what this device is.

How can I set to not connect to unknown devices?

MacBook Pro 15″, macOS 11.0

Posted on Nov 17, 2020 12:12 AM

Top-ranking reply

codq

Level 1

8 points

Posted on Feb 22, 2021 5:09 AM

Well alright! I turned off Handoff on my MBP16 (System Preferences> General>"Allow Handoff...") and we're getting close to half-a-day without any rouge connections knocking off my legitimate Bluetooth devices. I

If this is indeed the culprit, then I can absolutely live without Handoff if it means feeling secure that my keyboard/trackpad aren't going to be disconnected 12 times per day.

Handoff is occassionaly useful for sharing clipboards between devices, but it's not an essential feature in my workflow. I'll just use Gladys, or a scratch Note for passing off text and links between my iOS devices and my Mac.

I do hope Apple continues to iterate and fix this problem on future Big Sur releases; if Handoff is what's causing this problem, then I hope that this information helps them squash the bug.

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24 replies

codq

Level 1

8 points

Dec 22, 2020 8:26 AM in response to somethingFishy589

Same issue here. Bluetooth suddenly connects to a rogue device, and then fails. This happens multiple times per day.

No option to permanently 'forget' this device. Anyone find a solution?

Wlllz

Level 1

4 points

Dec 31, 2020 3:39 PM in response to codq

Same issue with MacBook Pro 16 Big Sur + MX Master 3 ...

Anyone find a solution ?

codq

Level 1

8 points

Jan 1, 2021 5:47 AM in response to Wlllz

Still struggling with this. 3 or 4 times a day at least, the computer connects to some unknown device and knocks out the BT connection on everything else. Incredibly frustrating.

Wlllz

Level 1

4 points

Jan 8, 2021 4:51 AM in response to somethingFishy589

Does it work ??

I did all reset and the problem still last

Wlllz

Level 1

4 points

Feb 22, 2021 10:49 AM in response to harinair

Same issue when the Bluetooth is activated

In the house we have 2 MacBook, 6 iPhone and 1 iPad

The problem is only on the MacBook Pro 16 2019

tianshuo

Level 1

4 points

Mar 12, 2021 3:24 PM in response to Wlllz

Did you get it resolved?

tianshuo

Level 1

4 points

Mar 12, 2021 3:27 PM in response to somethingFishy589

Hi, If the address changes time to time, how do you explain which device is the culprit?

I'm facing exactly same issue.

tianshuo

Level 1

4 points

Apr 23, 2021 12:52 PM in response to tianshuo

Ah, after 2 months, the problem came back again....

Nov 17, 2020 7:58 AM in response to somethingFishy589

The address changes time to time and automatically connects to it. WTF?!

70-b6-6c-3a-30-d2:

Address: 70-B6-6C-3A-30-D2

Random Address: Yes

Resolvable Address: Yes

Services:

Paired: No

Configured: No

Connected: Yes

Bluetooth Core Spec: 1.0b

Class of Device: Low Energy

AFH: On

AFH Map: fffd0f801b

RSSI: -62

Role: Peripheral

Connection Mode: Active Mode

Interval: 0 ms

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Big Sur Bluetooth automatically connects