Can't disconnect form Speaker with Connect

[1163730422]

When I try to play a song on my phone it automatically says that the song is getting played on my friends speaker, and the message pops up every 2 seconds or so. It's not only impossible for me to remove my friends speaker from my Spotify Connect, but it's also impossible for me to play music on my device. I connected to my friends speaker yesterday, and it hasn't disconnected since. I've tried to log out from all devices, but it doesn't help. My friend lives some kilometer away from my house and she told me that she can hear music even though she doesn't play anything.