Spotify, device is offline

[nucleus]

Hello friends,

I have 2 echo dots in my house. I have connected my spotify premium account in the alexa app and in the 1st echo I can request a song and it plays. When I request a song in the 2nd echo, I get the message: "Playing eg. Guns and roses" and then, "Sorry, that device is offline".
If I request the 2nd echo to play a song in the everywhere group, it plays on both echos. Also, if I select the second echo in my spotify app, it plays fine.
I tried disconnecting and reconnecting spotify skill, but this didn't fix the problem. Does anyone have an idea how to fix this issue? Has this happened to you?
Thanks for your help!

[nucleus]

I changed the wifi through the Alexa app, to another wifi network and now everything works!