Best answer by Jeff S
I also have a diagnostic report number: 267637019
Thanks for sending the report. There are many wireless communication errors between your Sonos components. Most of the time changing the wireless channel your Sonos system is using can help reduce wireless interference from nearby signals.
If you've already tried all 3 channel options, take a look around and in between your Sonos speakers for any third party electronics which could be causing interference. Common sources include cordless phones, wireless cameras, wireless baby monitors, wireless TVs and wireless printers.