setting up sonos gen beam

Trying to set up Sonos beam in a different property . Have Sonos beam already working in another house but when trying to set one up in this house do I need another app , which when trying to install only puts me into my app I already have but the internet WiFi for this house is different so it doesn’t let me do anything . Do I need to change my WiFi connections each time I go to different houses and can I add the new beam onto the app I already have.