My Move stopped showing up in the app when I replaced my cable modem/router. Once I figured out that I needed to connect to the new home network I was able to go on to the next steps on my iphone. It told me to connect to the Sonos wifi instead of my home network which I did. I then added the Move on the Sonos wifi network and reconnected to my home wifi.
Now it shows up as Portable on my iphone but it can’t access my music library (says it can’t connect to my network drive) It does work for spotify.
Not only that but Portable is now the only speaker that shows up on my iphone sonos app. On my computer app the Portable doesn’t show up but all the other speakers work fine and can access my network drive.