So are you saying you clicked on Next and nothing happened? What firmware are you currently running on the WS-2902A?
The WS-2902A sometimes needs to be factory reset. Before factory reset make a note of your rain totals so that you can enter them back unless you feel good about the information that AmbientWeather.net or WU has for reference.
https://ambientweather.net/help/how-do-i-restore-console-to-factory-default-osprey-series/
Last version was 4.1.1 as it was just updated weeks ago when I was using this ws-2902a pws at home. I deleted it when I was having issue setting up the ws-2000 at home.
After the pic I posted above it times out and gives me a error message. Should of took a pic of that message, but it was about not connecting to the wifi. But yet it is connected as I can see the ws-2902a pws on Ambient and WU.
Oddly enough I was able to show WU through the app by filling in the login info manually.
Reading the help section on the Ambient website, it says to make sure the awnet app has the location turned on and I just noticed mine was off.
The campground has repeaters through out the grounds that could also be an issue even though there is a repeater 20 feet away from me.
Now, if I do a factory reset, will that reset me to the old version that my ws-2902 came with? At this point I rather not have to do a reset unless I have too.
Cell service is also very spotty at the campground if that matters.