
If it's the first time, make sure to allow Knobbler to find devices on your network. This is how it will find its companion device in your Ableton Live set.
If you see the "Nobody Home" message, tap Refresh to rescan the network. Make sure both your computer and device are on the same WiFi network, and that Ableton Live has Local Network permissions enabled.

If one-touch connect is not working for your setup, you can configure the connection manually:
If you want to use more than one device, then follow these instructions here: Multiple Devices.
Next, check out all of Knobbler's Features.
If you're having trouble, then check out Troubleshooting.
If you are somewhere without a WiFi network, here are some instructions to create a private WiFi network on your Mac.