Sadly, I started to get this problem with an older Roku. So I spent what little money I had left on a streaming stick+. But I'm still having the issue. Whenever I pause long enough for the screensaver to pop up, I returned to watch by pushing play and it had already disconnected me. We're talking less than 10 minutes. And it happens every single time.
I've tried disconnecting it. I've tried restarting it. Nothing changes.
I wish I hadn't spent the money on an "upgrade." At the time I didn't realized that there was a version with a headphone jack and one without. So now I'm stuck without a headphone jack, and the problem isn't fixed. 😕