Diagnostic report #1839128086. Speakers being used 4 x Play 1, Playbar & Sub. Media being used: TV. Speakers are in 3 groups: TV room = paired Play 1, TV = Playbar & Sub finally lounge = paired Play 1. Whilst watching various speakers are dropping sound; on a very intermittent basis. Streaming Netflix 4K bandwidth 214Mbs download speed. Any suggestions? I'm a bit of a Luddite so if any answer could be as simple as possibl, I would really appreciate it. Cheers.