OSX connects to all BLE devices

[Marius Heil]

Hello,

I have a collegues Macbook here that constantly connects to my mesh. Has this behaviour changed with the newest version of OSX? Has anybody noticed? I am advertising Manufacturer specific data with my own company identifier and i deliver an empty scan response. Any way to tell OSX to leave my devices alone? Is there anything that I can send over the connection so that OSX will not connect to my device again?

Marius

[Nguyen Hoan Hoang]

Probably your mac has paired with your device. Go to bluetooth settings to unpair your device.

[Marius Heil]

No, it has not paired. It's not in the list of Bluetooth devices under settings. It's only in the dropdown menu when you click in the status bar and the only option is to disconnect. It stays connected to my device eben that I do not respond to its messages, apparently it has no timeout. I'll ask in the bluetooth dev mailing list from apple if they've changed anything with El Capitain.

[Nguyen Hoan Hoang]

That is a strange behaviour. I work with OSX everyday, never have this issue even with EI Captain. Have you look in system preference/bluetooth ? Does it reconnect automatically when you disconnect it?

[Marius Heil]

Yes, there was nothing in the system preferences. I've attached a log from the sniffer (I've crossed out some packets that come from other devices). It reconnected when I disconnected it.

[Nguyen Hoan Hoang]

Only thing I could think of is perhaps you have an application running that connects to the device. May be a background app. The OS X itself does not connect to ble device automatically unless it's an hid device such as mouse or keyboard.