Q: intermittent bluetooth dropouts, hardware or 10.11.3?

as mentioned, i've tried both of those. long-time mac user, so called NVRAM as PRAM (funny to notice... the keyboard sequence still includes P and R). i also ran the hardware check. thanks, though.

anyone else having problems? it's getting to the point where it's getting extremely frustrating.

okay, more info that may, or may not, be a clue.

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:

Arcam Bluetooth connected, handle: 0xC

Feb  6 09:50:55 MacBook-Pro bluetoothaudiod[25494]: debugInfo:{

      AudioDevices =    {

      };

      AudioSystemIsSleeping = 0;

  }

Feb  6 09:50:55 MacBook-Pro com.apple.xpc.launchd[1] (com.apple.bluetoothaudiod): Service only ran for 0 seconds. Pushing respawn out by 1 seconds.

Feb  6 09:50:56 MacBook-Pro kernel[0]: IOBluetoothDevice::setProperties() -- calling mHCIController->CallCreateDeviceReporter() -- this = 0x2000

Feb  6 09:50:56 MacBook-Pro kernel[0]: IOBluetoothHostController::CallCreateDeviceReporter -- calling enqueueAction() -- device = 0x2000

Feb  6 09:50:56 MacBook-Pro kernel[0]: IOBluetoothHostController::CreateDeviceReporterAction -- device = = 0x2000

Feb  6 09:50:56 MacBook-Pro kernel[0]: IOBluetoothHostController::CreateDeviceReporterAction -- calling CreateDeviceReporter() device = = 0x2000

Feb  6 09:50:56 MacBook-Pro kernel[0]: IOBluetoothHostController::CreateDeviceReporter -- device = = 0x2000

Feb  6 09:50:56 MacBook-Pro blued[93]: Device Connected with address: 00-1b-7c-03-39-04 and classOfDevice 0x240428 and connectionHandle 0x000c

then, this repeates literally every second...

Feb  6 09:50:56 MacBook-Pro bluetoothaudiod[25496]: debugInfo:{

      AudioDevices =    {

      };

      AudioSystemIsSleeping = 0;

  }

Feb  6 09:50:56 MacBook-Pro com.apple.xpc.launchd[1] (com.apple.bluetoothaudiod): Service only ran for 0 seconds. Pushing respawn out by 1 seconds.

Feb  6 09:50:57...

Feb  6 09:50:59...

etc, until:

2016-02-06 00:51:11 +0000 Handle: 0xC disconnected, reason: 0x13

Arcam Bluetooth disconnected

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.

Edit: now also noticing that the "pushing respawn" message just always appears every second even when doing nothing with bluetooth. fun stuff!

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.

Mar  5 11:27:00 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:27:00 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:27:08 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Transport Switch string MOTransportSwitch

Mar  5 11:27:08 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Low Power Disconnect string MOLowBatteryPowerDisconnected

Mar  5 11:27:08 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:27:08 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:27:08 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothInterface::matchPropertyTable Interface score is 0

Mar  5 11:28:08 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][getExtendedReport] Could not retrieve information for BatteryPercent feature

Mar  5 11:28:08 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][updateBatteryLevel] Couldn't get battery percentage from device

Mar  5 11:37:06 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:37:06 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:37:14 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Transport Switch string MOTransportSwitch

Mar  5 11:37:14 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Low Power Disconnect string MOLowBatteryPowerDisconnected

Mar  5 11:37:15 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:37:15 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:37:15 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothInterface::matchPropertyTable Interface score is 0

Mar  5 11:38:15 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][getExtendedReport] Could not retrieve information for BatteryPercent feature

Mar  5 11:38:15 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][updateBatteryLevel] Couldn't get battery percentage from device

Mar  5 11:44:31 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:44:31 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:44:39 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Transport Switch string MOTransportSwitch

Mar  5 11:44:39 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Low Power Disconnect string MOLowBatteryPowerDisconnected

Mar  5 11:44:40 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:44:40 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:44:40 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothInterface::matchPropertyTable Interface score is 0

Mar  5 11:45:39 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][getExtendedReport] Could not retrieve information for BatteryPercent feature

Mar  5 11:45:39 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][updateBatteryLevel] Couldn't get battery percentage from device

Mar  5 11:53:20 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:53:20 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 11:53:40 MacBook-Pro kernel[0]: **** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOReturnNotResponding error - retrying: 1

Mar  5 11:53:41 MacBook-Pro kernel[0]: **** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- mInterruptPipeInOutstandingIOCount = 1 -- this = 0x3000

Mar  5 11:53:41 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Transport Switch string MOTransportSwitch

Mar  5 11:53:41 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Low Power Disconnect string MOLowBatteryPowerDisconnected

Mar  5 11:53:42 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:53:42 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:53:42 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 11:53:42 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothInterface::matchPropertyTable Interface score is 0

Mar  5 11:54:41 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][getExtendedReport] Could not retrieve information for BatteryPercent feature

Mar  5 11:54:41 MacBook-Pro kernel[0]: [AppleHSBluetoothDevice][updateBatteryLevel] Couldn't get battery percentage from device

Mar  5 12:01:46 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 12:01:46 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceDisconnectedCallback

Mar  5 12:01:54 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Transport Switch string MOTransportSwitch

Mar  5 12:01:54 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothDevice::handleStart Low Power Disconnect string MOLowBatteryPowerDisconnected

Mar  5 12:01:55 MacBook-Pro SystemUIServer[387]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 12:01:55 MacBook-Pro blued[94]: [BluetoothHIDDeviceController] EventServiceConnectedCallback

Mar  5 12:01:55 MacBook-Pro kernel[0]: [HID] [ATC] AppleHSBluetoothInterface::matchPropertyTable Interface score is 0

Mar  5 12:02:12 MacBook-Pro authexec[44230]: executing /System/Library/Frameworks/IOBluetooth.framework/Versions/A/Resources/Bluetooth Reporter

hello,

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.

additional information: i had a similar problem with my 2009 macbook pro 13-inch. i am now using a 2012 macbook pro 15-inch. it seems unlikely two separate machines have the same problem. the only commonality is the OS.

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.

because of the intermittent nature of the problem, it is impossible to "demo" it for apple store staff. at times, i can use peripherals for many hours uninterrupted. then, it happens randomly.

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.