I have a Roku Premiere and I am having trouble with the private listening feature through the Roku app. I am playing a video from my phone and casting it to my tv through the Roku app and I am trying to use the private listening feature by connecting my headphones through my phone. It works for a few minutes and then it disconnects and begins playing the sound through the tv. I keep trying but it does the same thing. It'll play for a few minutes and then disconnect again. I've reset my Roku by disconnecting power and reconnecting, I've tried multiple headphones, I reset the router, I even tried two different phones. It's frustrating when one of the features I bought this Roku for doesn't even work right.
I read all the troubleshooting tips and followed all the instructions I could find as I explained in my post. The problem I am having isn't addressed in that post or any other one I read. I'm still having the same issue. That is why I decided to make my own post.
Does this occur on your mobile device when the screen is locked, or your phone goes into standby? If so, you'll want to look into your phone's power management or security settings to disable any feature that may be interrupting the app's ability to communicate when the screen is turned off, etc.