You flip your USB switch so that your Bluetooth dongle is now connected to computer B.
#Usb bluetooth dongle for mac how to
Note: Scroll down to " The easy way" at the bottom of this answer if you don't care about what's going on and how to do it manually. When the initial (manual) authentication occurs, both devices store a 'link key' which they use to automatically authenticate for future connections. This is caused by the way Bluetooth devices authenticate to each other. It's my understanding that this shouldn't be happening, so is this fixable? I've disabled the native bluetooth adapter on the Mac and confirmed that the Mac now uses the USB adapter instead.
If the headphones were previously paired with that computer I cannot get them to connect at all unless I delete them completely from the bluetooth settings and go through the pairing process all over again on the current machine. Once I've paired the headphones to one of the computers and use the switch, something strange happens. I'm very pleased with the headphones and the USB tools that I just listed, except that I have real trouble getting the headphones to switch when I use the USB switch. Recently in an effort to cut as many chords as possible I purchased a set of bluetooth headphones as well. To facilitate switching my keyboard and mouse between the two I also bought a USB switch from Amazon. The desktop didn't come with a native bluetooth adapter so I purchased one from Amazon that connects via USB. I have two computers one is a Macbook Pro running MacOS 10.13.5, and the other is a desktop running Windows 10.