I have an audio dropout problem with my Sonos system. I didn't have this problem when I first got my Sonos system, or for several years after. In searching the internet for solutions to the problem however, I notice that many other people have problems that are much like mine. Working with the Sonos people we've been able to alleviate, but not eradicate my problem.
At first I couldn't tell whether the problem was with my in-house internet or the world-wide internet. An easy (but not conclusive) test for this was to see if I got dropouts from my in-house music files or not. If I got dropouts from all exterior sources and none from the interior ones that seems pretty conclusive to me. My dropouts all come from exterior sources. My understanding of that situation indicates that a larger digital audio signal buffer would fix the problem. But (especially) older Sonos equipment has no way to add a buffer to the signal.
Thus, I would like to suggest that Sonos build an improved Boost that includes an adjustable audio signal buffer -- adjustable because I may need more or less buffering than you. One that adjusted itself over a few hours or days of use would be best, or I could adjust it to meet my needs if necessary.
Please Sonos, give us a way to improve buffering on our Sonos audio systems.