I corrected above. But under preferences/notifications - do not interrupt should be on. Below that - App settings, turn all off.
@Benno1969 just curious if you’re using a vpn. I use ExpressVPN with the killswitch on and at times if there’s a problematic server on their end it will disconnect me from the internet which will cause whatever I’m streaming to stop. I actually love these trouble shooting problems because it could be so many things, eventually 
it will get solved…hopefully, maybe. Good luck 
and stream on.
Lol. Tx for the correction. That’s why I posted that little bit of help for the Firesticks as that’s what I thought you might have meant.
Have fun and STREAM ON.