Music playing on wrong device

[sitruc999]

I'm not using FB to sign on.  I use my normal user and PW.  However, lately when I click on Spotify on my office computer and click on the play button, my dashboard on my home computer starts playing the music and I can't hear or even see the play progress on my office computer.  Wife isn't happy.. 🙂  I have signed out and back on and didn't help.  I even downloaded the app again on my office computer.  Any suggestions?