recently, i have noticed in addition to my magic mouse 2 loosing connection, that my bluetooth audio receiver also stops receiving music at the same time. when the mouse reconnects 2-5 seconds later, the bluetooth audio also comes back at whatever point itunes continued to play to and i can hear it again. i've deleted preferences and re-paired both; i have reset both the PRAM and the SMC with no change. i have also run the apple hardware test (holding D on startup); it reports no hardware problems.
i'm trying to figure out if this is a bluetooth hardware problem (bad bluetooth on airport card, though wifi seems fine), or something that started with the 10.11.3 update. i'm not sure if it's the update, or if it's just a coincidence i started noticing this more at the same time.
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a quick scan of the bluetooth forum here i noticed a couple people say they think their mouse problems seemed to start with the 10.11.3 update. i'm hoping to get more people to chime in here with observations of the same. i really don't want to go through the hassle of going to an apple store, losing my macbook to get the airport card replaced (can't work during this time), just to find out it's another software bug. anyone?
note: using a mid-2012 15" macbook pro, brand new magic mouse 2, and arcam miniblink bluetooth audio device. last year, i had a 2009 13-inch macbook pro and the bluetooth audio device worked fine with it.
Two systems (iMac Retina and Mac Pro, both with 10.11.5) have been having problems with bluetooth. Both have the Magic Mouse 2 and keyboard (models with lightening charging ports) and no other bluetooth devices. At random times the bluetooth devices disconnect. The system logs are full of the "PM kernel[0]: [AppleHSBluetoothDevice][updateBatteryLevel] Couldn't get battery percentage from device" messages, and the battery % lines are greyed out. When we purchased the systems, I requested USB mouse and keyboard, but IT delivered wireless mouse and keyboards. Most users here have given up on bluetooth and are using wired mouse and keyboard -- I have to borrow them to login and reconnect the disconnected wireless devices.
i've noticed for the past few days, that i cannot connect my audio bluetooth device, if the magic mouse 2 is already paired. i notice this after waking up the macbook; the mouse always re-pairs, but the audio bluetooth device does not. so, i try to manually pair it - it briefly says "connected" for maybe 10-15 seconds, then goes right back to "not connected." but, if i disconnect the mouse, then i can easily pair the audio device. then, if i reconnect the mouse, all is fine (well, except for the dropouts).
clearly, there is some extremely wonky bluetooth stuff happening here. because of this new behavior i'm noticing, it seems like a software problem. but... i'm seriously clueless of what to try. i tried the "bluetooth explorer" devtool, and this is what i get out of the event log:
who knows, maybe this will help some silent random apple engineer figure this out. wish there was somewhere to find out what "0x13" meant. and, again, this is a new additional problem to go along with all bluetooth going out for 1-5 seconds every hour as mentioned in the original post.
al lright, really getting fed up with this. it's just ludicrous that a company that makes the computer, the system software AND the bluetooth mouse can't get them to work together. this is output from "create diagnostics report on the desktop" - recently discovered feature if you hold the option key while selecting the bluetooth menubar icon. notice the times! happening every few minutes.
sorry if i've been providing too much detail in a longwinded fashion, but you seem to be missing key details from some of it. first sentence in the original post describes why this is a system software issue: two separate bluetooth devices loose then regain their bluetooth connections at the same time.
lastly, i have since removed the bluetooth audio device from my system completely, and it is off and cannot be discovered. yet, the problem still persists with the mouse - thus, it is not an interference problem, either.
Exact same problem here. Bluetooth Mouse and Keyboard disconnect at the same time. Was happening on Yosemite, still happening on El Capitan. My old Magic Mouse one would disconnect and I would have to jump through many hoops(On/Off, take out batteries, turn bluetooth on/off) to get it to reconnect. When the Magic Mouse finally did reconnect, my Keyboard would start working automatically connect as well.
Did anyone figure out a resolution to this issue? I just left my iMac at the apple store for three days due to me having the same issue and they told me that it was working fine and didn't miss a beat. Then, no longer than 15 minutes after taking it home and using it again, what do you know? Bluetooth dropouts begin again. I've started to monitor the console information now which has left me here. This is beyond frustrating, according to Apple it is interference within my household but I seriously doubt this is the case, non OS X devices do not seem to have any issues over bluetooth.
I am having the same issue with iMac 27 late 2015. For me both magic mouse and magic keyboard magically disconnect and then reconnect after 10-15s. The interesting finding is that keeping keyboard connected with lightning cabe prevents it from disconnecting, while mouse still gets disconnected.
I have the same issue. I mostly use my Apple mouse and keyboard and they get randomly disconnected at the same time. Sometimes I can get a full day without disconnects but on most days I get a disconnect every hour or so.
thanks GNW3... i'd say this, along with mine and the others above, is really definitive proof that it's a system software issue. which, is mind boggling, considering it's the same company making all the hardware and software, especially in your case. i'm already using a cable usb mechanical keyboard myself. and, just now as i was typing my view was obscured by "mouse disconnected, mouse connected" popping up in the middle of my view.
i've also just had problems with connecting a new bluetooth speaker - two of them, actually. both exhibited the exact same behavior, which i think is further evidence that bluetooth in OS X (or, macOS?) is royally messed up. and, wish i could change the title to 10.11.5 - amazing, so many revisions, yet so much fail.
Dave Rauchwerk, the CEO of Next Thing Co., which makes the CHIP, showed me his Kickstarter-backed computer. "When you take it out of the box you can connect a keyboard, Bluetooth and mouse really easily," he says. "It also has a USB port so if you wanted to, you could plug into any old keyboard you can find."
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