I tried to setup another computer with a Bluetooth dongle to connect my Macbook Pro (OS X Mavericks). I managed to pair them and ever since then I get these messages every 10-30 seconds and often they crash and freeze the BT:

A bluetooth serial failure has occurred.
Failed to open an RFCOMM serial channel.
Check if authentication needs to be enabled in your device.

I removed the offending Bluetooth dongle from the favourites and deleted the com.apple.bluetooth.plist file, yet the dongle keeps trying to connect and the error messages keep popping up.

How can I block that dongle from connecting?

Error dialog

  • 2
    Any luck? I have a similar problem. I'm trying to read the serial port for the paired device. Starting a screen session on the port results into this error for me.
    – Chirantan
    Oct 14 '14 at 12:33
  • Same issue 6 years later. Aug 3 '20 at 17:42

You must log in to answer this question.

Browse other questions tagged .