Spotify Connect and Bluesound Node 2 Player Problem

[user-removed]

Hello community !
A member of my family has got a Spotify premium account, and sometimes uses my Node 2 player with Spotify Connect. He's got a Huawei Smartphone and everything works fine so far.
Actually I created my own Spotify Premium account, and tried to connect to the Node 2. Within the Spotify App I can see the Player in the list of devices but when I try to connect, nothing happens.
Same behaviour with Samsung Galaxy Tab S2, Samsung Galaxy S5 Neo and Apple ipad Air. Even after a factory reset of the Bluesound Node 2 , nothing changed.
Any ideas ?

[Joe]

Did you try disconnecting the other Spotify account inside the BluOS app and re-authenticating your own log in? You can do this under the Settings menu.