Have been on Sonos 2 App for about 1 1/2 months. In the last week, speakers and amps disappear from the app...not always the same ones. I have two amps and 6 speakers. Self help FAQ says try unplugging and plugging them in ( IT Crowd... anyone?) That works but problem persists. Surely this must be software related, has there been an update to the app? no changes to my WIFI, no new electronics in the house.The 2 amps are in the same room with the router! Come on Sonos...your stock price is soaring, surely you can fix this? Ready to go another way and package this stuff up and send it to your CEO maybe they can figure out how to make this work.... Get with it, I cannot be the only one this happening with!!:(
Best answer by Airgetlam
Sounds a lot like every other post about this kind of issue, a network problem bouncing the connection of the speakers to your router. In 99.9% of all reported cases, it has been a local issue, and most frequently related to the local network. Sonos does excercise the network at a much higher level than any other computer/mobile device, due to the way they communicate not only with the outside world, but with your controller, and with each other.
There are typically one of two, or a combination of the two issues. First, and most likely, is fairly simple wifi interference , often, although not always, from outside your own network. There are quite a few solutions suggested in the linked FAQ, I’d recommend starting there.
Second, and much less common, is a duplicate IP address issue, caused bumpy an unhappy router handing out improper IP addresses when the Sonos reboot, such as when running a software update. Easily recitified by unplugginfpg all Sonos devices from power, and rebooting the router. Only when the router comes back up should the Sonos devices be plugged back in. This process can resolve other potential issues, as it not only forces a reload of the software on the router, but also the software on the Sonos devices. It’s low cost, so it’s an easy test, and would not cause any additional issues, more so than rebooting your computer does.
There are much less common issues than these two, but they display the exact same symptoms. It’s hard to identify them without suggesting that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.
There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.
When you speak directly to the phone folks, there are more options available beyond just the diagnostic analysis.