I have a ten year old Wave CD player with Soundlink USB key and external Soundlink adapter. I stopped using the pair for a while and when I went to reconnect I get no sound. I am using a Macbook Air laptop.
1) I was able to pair them and see the they are "paired" in my Bluetooth settings.
2) In my sound settings the internal laptop speakers are not selected - the Soundlink is selected.
3) The adapter is flashing intermittent pulses and the USB key light is slowly pulsing.