Karen gets a warning that she isn't connected to the internet on her Roku, when she is. Leo says he has the problem as well, and he believes it's because the internet will experience momentary drop outs from time to time and the Roku software doesn't handle drop outs very well. He doesn't know what the fix is, though. Karen could restart the Roku by unplugging it and letting it reboot. But that's frustrating to do when the show is still playing. Getting a newer model should fix it. Leo has the Roku Ultra and it doesn't do that. It's possible that if she contacts Roku and tells them the problem, they may replace it.