I got it to work one time. During mid song, the song played on my iphone 6s via home sharing from my laptop "vanished." I can no longer see the home sharing option when i click the section that brings up (artists, albums, songs, genres, only offline music) Both my laptop and iphone 6s wifi's didn't disconnect from the router when this happened.
iPhone 6s, iOS 9.1, Itunes - Home Sharing