System switching from sonos port (Bedroom) back to sonos amp (Living Room) without prompting

Same stream always….never different...I start a stream on system 2...and before I know it ...it goes back to system one by itself..thanks..!

What is the source of the stream? AppleMusic, Spotify, Tidal or something else. Also are you streaming via the Sonos App or the source native app?

All things sound…..anything generated from computer….recorded music library (I am a musician)….Youtube ...

I see this is a continuation of your other two topics here. But you have replaced the Connect (Gen 1) with a Sonos Port. Good choice.

Please explain, in detail, how you go about playing music on your Sonos Port. Choose something to play. Tell us what it is and from where you are selecting to play it. All the steps involved, be specific. When you do this, unplug your Sonos Amp and turn off the EQ it’s using as line-in.

There seems to be a terms and/or language gap going on.  Tell us exactly what app you are using to initiate play, what the steps are, and how this "drift" appears on the app.  Screenshots would help.

Might help if everyone uses as many standard terms as possible. 

https://en.community.sonos.com/tutorials-and-how-to-s-229149/sonos-terminology-6905527?tid=6905527&fid=229149

If I had to guess what’s happening, I’d say the op is using the Amp line-in as source for the Port. But has Autoplay line-in enabled to the Amp. Just a guess. I can think of a couple other scenarios, but without knowing exactly how the port is playing, it’s difficult to determine what’s happening.

KDowling..I think you may be close…..I will turn off the amp and see what the port is doing….I am suspect of something wrong in the way I set this up…..new stuff all the way around for me….Port is behaving the same as the connect 1 with regard to always defaulting to amp......amp is line in...and in autoplay set to off for “include grouped rooms”…..port has nothing all line in greyed….this is an analog system...no opt out on laptop….I will feed you info as you ask...MANY THANKS..

You could also tell us what you are trying to achieve with your set up? Why would you feed the output from a Port into an Amp, if indeed that is what you are doing?

​@Billaswell, these are some of the questions that have been asked and not answered:

It is still not clear what you mean by “it” goes back to system 1. What is “it”? Do you mean audio? Or do you mean the selected room shown in the Sonos controller app? Or? Please explain.

We’re just trying to help. The more information you can give us, the better the help.