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LimL

macrumors newbie
Original poster
Dec 4, 2021
8
1
I have a Macbook Air M1 2020. The system automatically upgraded to MacOS 12.0.1 about 3 weeks ago . Since the upgrade, whenever I do a cold boot, the mouse will be unresponsive and often the OS will crash and restart. The Bluetooth mouse is Logitech M557. Really annoying problem.

I have done a bit more investigation myself. What I discover is that when I do a cold boot, if I let the Bluetooth mouse connect first at the log on screen and then log on, the mouse works correctly without auto reboot. However, if I log on too quickly without letting the mouse to connect first then upon log in the mouse becomes unresponsive and system will do a auto reboot. It looks like some kind of Bluetooth connection timing issue with 12.0.1. Mouse worked fine with OS 11.* .

An Internet search reveals the Monterey Bluetooth problem is wide spread with different devices, even with Apple devices. What I got in touch with Apple Support, all the service desk can advise is to reset/rebuild the OS. I decided not to as from years of experience, I am almost certain that this is an OS problem and not my device problem. The support person was trying to say because I use a third party (Logitech) Bluetooth mouse

Does anyone have any insight on the problem and whether Apple is working on a fix?
 

PaulineLCLDC

macrumors newbie
Dec 15, 2021
2
0
Hey,
No answer for you unfortunately, but I share this kind of problem as well... My bluetooth doesn't connect to any of my bluetooth devices. It's been a month and I was hoping to get a fix from Mac but still waiting I guess.
 

LimL

macrumors newbie
Original poster
Dec 4, 2021
8
1
Pauline. Are you using Mac OS 12.0.1 or 12.1? The very latest 12.1 is suppose to be more stable but I have not tried it given that I have been burned by 12.0.1. You may want to try 12.1 if you are still using 12.0.1 or the viable alternative is to use a wired mouse until you are ready to upgrade to a stable version.
 

beowulf70

macrumors regular
Oct 20, 2010
247
23
London
I have just received my new MacBook Pro 16" (Apple M1 Max, 64GB), with MacOS Monterey 12.0.1 – and guess what? My Bluetooth Logitech MX Master 2S mouse no longer works!! WTF?

The mouse appears in the Bluetooth settings window – click Connect – nothing. It won't even work when plugged in to charge via USB cable, as it used to do. Seriously pissed-off with Apple. £4k Mac!?!?!

Updating to MacOS 12.1 now...
 
Last edited:

LimL

macrumors newbie
Original poster
Dec 4, 2021
8
1
Beowulf70. Did you try a complete shutdown instead of a soft re-start after the upgrade to 12.1?

I bite the bullet today and upgraded from 12.0.1 to 12.1 and my Bluetooth mouse (Logitech M557) problem is gone. My machine no longer randomly crashes when trying to connect to Bluetooth. So it appears some Bluetooth problems have been fixed in 12.1 ...
 

beowulf70

macrumors regular
Oct 20, 2010
247
23
London
Beowulf70. Did you try a complete shutdown instead of a soft re-start after the upgrade to 12.1?

I bite the bullet today and upgraded from 12.0.1 to 12.1 and my Bluetooth mouse (Logitech M557) problem is gone. My machine no longer randomly crashes when trying to connect to Bluetooth. So it appears some Bluetooth problems have been fixed in 12.1 ...
Yes. I shut the Mac down after the OS update. Restarted. No change at all.

My Apple Magic Keyboard connects automatically, as before.

My Logitech mouse INTERMITTENTLY appears in the Bluetooth settings window as MX Master 2S, with a mouse icon next to it, but below a grey line, not at the top of the list of Devices.

I'm calling Apple today. This is unacceptable...
 

beowulf70

macrumors regular
Oct 20, 2010
247
23
London
*UPDATE*

After calling Apple and performing some Diagnostic tests, no problems were found. But no change to connecting my mouse. Same as before.
My Powerbeats3 headphones will not connect either.

After being transferred to an Apple Senior team member, the only recommendation was to reinstall the macOS. I will do this later on today.
 

LimL

macrumors newbie
Original poster
Dec 4, 2021
8
1
Beowulf70. My experience with Apple Support is less than satisfactory.

When I first contacted Apple support regarding the Bluetooth problem on 12.0.1, after a frustrating one hour chat, all Apple support can offer is to reinstall the OS. From my years of experience in Software Development, I knew the only variable which has changed is the OS from 11.* to 12.0.1 so the main suspect has to be the OS. They also try to blame the Logitech mouse (third party). From Apple Developer Forum, Apple reworked the bluetooth stack extensively in Monterey so there may be still bugs.

My mouse no longer has the random OS crashing issue with 12.1 vindicated me. Apple Support follows a standard script which is not really value add. I would say logic should prevail. IMHO, reinstalling the OS is NOT going to fix your MX mouse problem as it is likely to be waste of time. I suspect it is still a OS issue or a Mouse firmware issue. Can you check Logitech to see if there is a firmware update for your MX mouse?
 

AMMUGAMMU

macrumors newbie
Oct 10, 2021
11
3
Can you see the pattern here? You all use logitech mouses. Logitech software is a buggy mess, uninstall all traces of it or find another mouse, thats what I did two years ago
 

LimL

macrumors newbie
Original poster
Dec 4, 2021
8
1
Ammugammu. I have to respectfully disagree with your statement.

My Logitech mouse was working 100% fine on Big Sur, using standard Apple OS 11.*, no Logitech Software. The Bluetooth problem was reported by many users using 12.0.1 on Apple Developer Forum using Apple mouse and keyboard devices. Therefore the problem is not limited to third party devices.

This time round, it is an Apple OS problem with their Bluetooth implementation. However, Logitech may have a firmware update for a particular mouse model to be more compatible with the Bluetooh stack on 12.1. I understand Monterey is trying to rework the Bluetooth stack for low energy Bluetooth.
 
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beowulf70

macrumors regular
Oct 20, 2010
247
23
London
Beowulf70. My experience with Apple Support is less than satisfactory.

When I first contacted Apple support regarding the Bluetooth problem on 12.0.1, after a frustrating one hour chat, all Apple support can offer is to reinstall the OS. From my years of experience in Software Development, I knew the only variable which has changed is the OS from 11.* to 12.0.1 so the main suspect has to be the OS. They also try to blame the Logitech mouse (third party). From Apple Developer Forum, Apple reworked the bluetooth stack extensively in Monterey so there may be still bugs.

My mouse no longer has the random OS crashing issue with 12.1 vindicated me. Apple Support follows a standard script which is not really value add. I would say logic should prevail. IMHO, reinstalling the OS is NOT going to fix your MX mouse problem as it is likely to be waste of time. I suspect it is still a OS issue or a Mouse firmware issue. Can you check Logitech to see if there is a firmware update for your MX mouse?
I checked Logitech's site and there are no firmware updates for my Logitech MX Master 2S or for macOS 12.0.1 or 12.1

My Logitech MX Master 2S mouse worked perfectly fine on my MacBook Pro (mid-2012) running macOS 12.0.1. What has changed? Mac hardware. So, I can't see how reinstalling macOS 12.1 will make a difference...
 

LimL

macrumors newbie
Original poster
Dec 4, 2021
8
1
I checked Logitech's site and there are no firmware updates for my Logitech MX Master 2S or for macOS 12.0.1 or 12.1

My Logitech MX Master 2S mouse worked perfectly fine on my MacBook Pro (mid-2012) running macOS 12.0.1. What has changed? Mac hardware. So, I can't see how reinstalling macOS 12.1 will make a difference...

What I heard on Apple Developer Forum is that Apple has extensively reworked the Bluetooth implementation in Monterey 12.* for low energy Bluetooth. It is possible that the new implementation has caused incompatibility problems for some Bluetooth devices. For 12.0.1 even Apple own devices stop working.

I think there are only two options for you. Log a ticket with Apple and hope that will address this Bluetooth issue in a future release of OS and in parallel log a ticket with Logitech and see if they are working on a firmware upgrade for your mouse.

I know how frustrating it is when things which work perfectly suddenly stop working with an OS upgrade ...
 

beowulf70

macrumors regular
Oct 20, 2010
247
23
London
*UPDATE*

Erasing and reinstalling the Mac OS changed nothing.
Relooked into Logitech's Options utility, followed the intructions – notably – holding down the Bluetooth input option button (1, 2 or 3) for 3 seconds until it flashes – BINGO! Connection! .:D Carry on as you were...
 
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openmemory

macrumors newbie
Apr 25, 2022
2
0
I can report bluetooth dropouts and lag on my Magic Mouse with the Mac Studio. The Wifi is also about half strength.

I had a previous Mac Pro sitting in the exact same place for 6 years, perfect wifi, perfect mouse receptions. Unpacked the Mac Studio, set it in the exact same spot, 3 feet from me, and the issues started immediately.
 

StoneJack

macrumors 68030
Dec 19, 2009
2,711
1,941
Apple rewrote bt stack in monterey. It is now 5.0 and very new and buggy but when it works, it works fine. so use logitech dongle, not bluetooth for your mouse, also put a by receiver on extender cable if you really need bt
 

Tanatcu

macrumors newbie
Jul 15, 2022
1
0
holding down the Bluetooth input option button (1, 2 or 3) for 3 seconds until it flashes – BINGO! Connection! .:D Carry on as you were...
You saved my life. I had the same issue with my Logi Anywhere 2s and didn't have an access to my usb receiver. But your method worked! I assume that mouse remember last device and doesn't connect to another one. Holding button turns on pairing mode and erases previously reserved Bluetooth device.
 
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