Open Sound Settings, Go to Manage Sound devices. Check and make sure both the Yeti Speaker and Yeti Microphone is enabled. I was having the same problem until I checked my output and inputs. If you have any of them disables, it'll show up as not connected or connecting on Ghub.How to setup the Logitech Harmony Hub?
Harmony Setup 1. Plug in the Harmony Hub. Place it near your Echo and TV. 2. Download and open the Harmony app 3. Choose “Set up new hub” 4. Once your hub is plugged in, check if the red light on the front is blinking. If not, press the pair/reset button on the back, as instructed in the app 5.