I can not get it started!

No. Nothing anymore, even the wired does no longer work.

Spoke too fast, wired works, I connected the wrong Ethernet cable....

Can you reinstall the app on and try again... In these case as said in my other thread use the option of speaker already setup..

I have tried now 3 times and don´t have any issue

I did try that already 2 or 3 times.