MacOS 12.0.1 Monterey Bluetooth issues

Same here.

Device: iPhone iOS 15.0 & iMac macOS monterey 12.2

Question: After I update macOS system newest version,The Bluetooth connection does not match. Even if it is connected, it will be disconnected immediately.

The issue can be still reproduced on Monterey 12.2. Apple has not respond to my bug report.

Apples Motto: Move fast and break things, they got the money, you the bill.

The same problem is occurring here...

iOS 15.2.1 Monterey 12.2

The error message tells that the device is not compatible.

Found an interesting half-solution for apps that use Bluetooth: Reset the Security & Privacy settings for this app in Bluetooth section.

Background:

1. Custom QT app for custom BLE device.
2. The app crashes when connecting to the device.
3. After Monterrey 12.1 update the app started working, but for the first run only.
4. Reinstalling the app didn't help.
5. It was accidentally found that when a prompt about "APP would like to use Bluetooth" is shown and agreed - the app is able to safely and soundly connect to the Bluetooth device. Once the app is closed these settings must be reset manually for the next run.

Very disappointed that there is no fix for the Bluetooth issue yet. It has been a few months since the first report and the update 12.2 didn't change a thing. Airdrop and wireless mouse not working, weirdly the wireless keyboard is functioning???? Have noticed that my com.apple.Bluetooth.plist is gone from the library??? I would suggest all those clever minds put in some overtime.

the same problem。。。。。

I have issues with connecting my Redragon k530 keyboard after upgrading to macOS Monterey. As soon as I turn off my keyboard and turn it back on, it gets reset for no reason and I have to remove it from the Bluetooth list and pair it again. I checked its logs with an app called "BlueSee" and I found this error in logs:

22:08:47.8950: failed to connect in underlying BLE layer: Error Domain=CBErrorDomain Code=14 "Peer removed pairing information" UserInfo={NSLocalizedDescription=Peer removed pairing information} 22:08:47.8960: state changed to 'Disconnected' with error: Peer removed pairing information

The issue can be still reproduced on macOS Monterey 12.2.1.

If possible don't upgrade to MacOS Monterey until Apple fixed bluetooth core. I'll downgrade (re-install) to the previous MacOS.

2/15/22. I have been waiting for this fix for two months now since I upgraded my MacBook Air to Monterrey. Just downloaded 12.2.1 hoping that Apple finally fixed the Bluetooth issue. I cannot get on bluetooth at all. I have done all the recommended things with the Plist files, shift, option bluetooth to no avail. It says blue tooth is undiscoverable. I am glad I tried this on my MacBook Air and not my new MacBook Pro. I am not going to download Monterrey to my pro unit until this issue is fixed. COME ON APPLE, I haven't run into anything like this since I switched from windows based years ago. AT LEAST SOMEONE SHOULD GIVE US SOME FORM OF EXPLANATION

The issue hasn't been fixed in 12.3 beta =(

I used to use http://www.acrosscenter.com/ up until Monterey destroyed the Bluetooth stack on my Mac... now I wish I never had updated to it and will be very very reluctant to update again.

This is the developer of across's comment about why it is no longer working:

Hi, Orvar,

Please consult to apple instead of us as mentioned in the previous release note.

We have no choice but to wait for fix in macOS BT stack. BT stack does not work at all. What do you think we can do for it?

Recent macOS versions are ******** poor quality. 

I must say that after reading this thread about the problem I agree with him... This seems to be Apples fault ... and they do not care enough to fix it .. or even admit there is a problem, which I find arrogant and irritating. I can't find any official Apple comment about the problem...

I used to love my development environment where I had full control from my Mac and could even use my wireless headphones :-) ... and was going to buy new MacBook Pro with the M1 chip .... but now I really find it hard to motivate ...

Without working BT MacOS is crippled ... maybe I should get a Linux laptop instead, because this really sucks.

Posting my solution: After trying nearly all the suggestions previously posted, with no sustained results, I unplugged my monitor which connects to the majority of my bluetooth devices. I initiate the startup/boot up of my MacBook Pro (running Monterey) with nothing else connected except the power cable. Then, after startup is complete, I plug back in my monitor. Now, all my devices work fine and consistently. This has been the only reliable and least cumbersome fix.

been waiting for the fix for months hate using my magic keyboard and trackpad wired

As a follow-up on my other answer:

As of Monterey 12.3 Beta 4, RFCOMM handles for our device are being properly returned and connectivity is restored within our application.

As an additional note, calls to IOBluetooth.recentDevices which we were leveraging are not currently working (at least for us). We have reverted to using IOBluetooth.pairedDevices() instead, which provides similar information.

Try upgrading to Monterey 12.3 Beta 4 which includes a fix that restored RFCOMM connectivity to our custom hardware device. Hopefully it does for you as well.

I am using a Bluetooth USB dongle, and it stopped working since I upgraded to MacOS 12.2 Monterey. In my case I found a solution that works: Every-time I boot the system I have type on terminal:

sudo pkill bluetoothd

type your Mac password

Then turn on bluetooth, and it works again.

I am using a Bluetooth USB dongle, and it stopped working since I upgraded to MacOS 12.2 Monterey. In my case I found a solution that works: Every-time I boot the system I have type on terminal:

sudo pkill bluetoothd

type your Mac password

Then turn on bluetooth, and it works again.

It is March 2022 and just update to Monterey version 12.2.1, MAC still has the same problem on mouse response and bluetooth connection. Does Apple really tried to solve this?

Same problem here. Just updated to Monterey. My bluetooth headphones show up, I can click Connect, then they instantaneously disconnect. They still work fine on all my other devices, just not my *#$&# laptop I use for work meetings, testimony at hearings, etc. Hope they come up with a fix soon.

After 5 hours/2 days working with Apple tech through phone, we did everything mentioned above and even more at least twice, still NOTHING WORKS. We had to send iMAC back to a local store and see if they have a better solution and voila~ after spend $267 for changing the wireless card, bluetooth/airdrop/mouse finally all function well. It seems that the Monterey system has bugs with the wireless/bluetooth card. It seems when updating OS, it's time for the Mac store to get profit from old customers.

Same problem; older MacOs had bluetooth working poorly; Monterey really screwed things over big time.

After calling apple support for the 4th time I finally got an answer: Pairing Iphones to a mac via bluetooth is no longer expected behaviour, the only thing we can do is submit feedback via this page: https://www.apple.com/feedback/

MacBook Air M1 chip experiencing the same Bluetooth connection issues described above since the 12.2.1 update bluetooth mouse pointer works but logitech mouse is NOT discovered in Bluetooth Devices and scroll wheel does not work now serious cost to productivity

The Macbook Air 2017 - Monterey 12.3 - still has problems with connecting to bluetooth. the first connection is normal, each next writes connected but the sound is flowing from the Macbook or the soundbar rejects the connection. Monterey broke bluetooth. Everything works fine on Big Sur. Apple fix it at last !!!