Best answer by Keith N
- disable the Sonos skill in Alexa app
- ensure you are signed into the proper Sonos ID (if you are at the vacation home, sign into that account)
- re-enable the skill and re-discover (at this point you may see your speakers from both locations)
In most cases where people have multiple houses, the best success is found when you treat each house as a different "person". This means a separate Sonos ID and a different Amazon Account. This keeps you from accidentally controlling your main home from your vacation home.