After the app is loaded and the weather station display console is plugged in and connected to the station, follow the steps on the app to connect your station to wifi and register your station on Weather Underground. You will simply need to enter your Weather Underground station ID and password/ station key into the specific fields on the app. Once your station is connected to wifi and your Weather Underground credentials are entered correctly, then your station is sending data to Weather Underground.
Check your data is transmitting to Weather Underground on your PWS dashboard by searching by your station ID on wunderground.com.
If the process fails to connect to your wifi after a couple of tries, you can reset the device by holding down the outer two buttons on the back of the console display until the unit beeps. This will clear the previous configurations and allow you to start over on the app.