It looks like you're new here. If you want to get involved, click one of these buttons!
The inconsistency with which I'm able to power up and pair my GuitarWing with my MacBook Pro (Retina, Mid 2012) OS X El Capitan Version 10.11.6 has worsened since I recently performed the required operating system updates.
Now it doesn't seem to matter if I plug in the USB receiver first, then turn on the Wing, then start the app (usually VirtualDJ 8), try to connect the Wing with the Firmware Update 105, or experiment with a number of other sequences - there doesn't seem to be any rhyme or reason for when and why the equipment finally pairs. I've also tried waiting different amounts of time between the steps. If I allow 30 minutes of continuously repeating and experimenting with steps, I eventually succeed.