You could just try bringing up the UI in the phone browser, like on a PC, using the IP address URL. If that doesn't connect, your phone is not actually connected to wifi. If it does connect, you can use that to connect devices until you figure out the issue with the app.
Edit: Sorry, I think don't LR connect is available in the web UI yet. Nevermind.
Edit2: Actually you can use a custom app to use the web UI for SmartStart