Recurring problem Bluetooth when I connect to Thunderbolt display

Since upgrading to OS X El Capitan, when I reconnect my MacBookPro with a Thunderbolt display (Magic Mouse and Apple keyboard) Bluetooth devices do not work and I have to unplug and re - a SMC.

Bluetooth cannot be activated and turn it back on, it just does not respond. So I always have to close all programs, and re - a SMC.

So that work, but it is very annoying, how do I solve this problem of disconnection?

I have OS X El Capitan, version 10.11.3 MacBOok Pro retina early 2015 with all updates.

Thank you.

I also have this problem on a Macbook Pro retina end of 2015.

Bluetooth preferences shows:

Cannot open the Panel preferences 'Bluetooth' because it is not available to you right now.

To display this Panel of preferences, you will need to connect a device to your computer.

And Bluetooth appears as "not available":

I ran Apple Diagnostic tool and it told me that I had a defective Bluetooth (hardware problem) and instructed me to contact Apple for a replacement. And so I did.

But the second Macbook, I got them also had this problem. Resetting the SMC is just a temporary workaround.

I suspect it has something to do with the thunderbolt ports. They seem to cause some failure to bluetooth connected/disconnected...

Also, the problem is present in Bootcamp (10 Windows) installation as well. The Bluetooth module appears like installed but with drivers hurt in "Device Manager".

Tags: Peripherals

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