I’ve run 2 parallel setups in my house through 2 different routers. A 4G mobile router runs just 3 zones of new Sonos equipment but my investment since 2005 (11 zones) sits on a router ringfenced at v8.4 with 5 or 6 CR100s still regularly used.
I’m changing ISP on Monday and can’t see any means of blacklisting the update.sonos.com domain so I suspect I will get the inevitable update that will make my faithful CR100s obsolete.
Any recommendations before this happens? Anything I can do to preserve any value in them for someone else? They all still work and have never had any battery changes.