I pull the cable and give the ports a short blast of canned air. If the problem continues I look for updates to firmware and be sure all audio is stereo.
Streaming is what it is. Still problematic and your average consumer shouldn't go near it. That is, for years the consumer has enjoyed fairly good results with cable and such content. Now with internet streaming that isn't as reliable the consumer often asks why it drops out.
I see Amazon getting close to solving this as they download the entire item as an option so no dropouts on playback because the show is all there.
How the industry will deal with this is a show in itself.
My HW E450C sound bar works great when I'm watching Direct TV or my Blueray/xbox. But when I stream music through BT or use the Samsung TV apps to watch something, the sound cuts out randomly for no more than a second and then comes back on. Anyone experience this problem? Any suggestions or tips on how to troubleshoot this away or does the sound bar need to go back?