[PROBLEM] Connection problem soundbar

[pokkeweer]

Since you are using an ARC connection between your soundbar and TV you should connect the Pi to an available HDMI port on the TV not the Soundbar. Switch to that port using your TV remote.

ETA: 
Menu > Configure > Peripherals
Turn on Local display to show moode WebUI on your TV
Turn on CEC control to send "power on" commands to TV/Soundbar when moode starts up

Thanks for replying!
I connected the Raspberry to the tv (HDMI-1).
I have adjusted the settings you give in the web interface on my phone.
When I start the Raspberry I see a login screen on the TV. Do I need to create an account first and always have to login using the tv?
It is not my intention when I want to listen to music the television also turns on and need to login.... I have the idea that this does happen because of your solution?! Or am I doing something wrong?