sonos drop outs when streaming music

A couple of suggestions to try. First, assign reserved IP addresses for all your Sonos devices, if you can, in your router’s DHCP table. Instructions on how to do so should be found in the manual for the router. Second, remove your BOOST from your system. Speaking personally, I’d hang everything off your WiFi signal, per the instructions listed in the wireless and wired systems FAQ, others suggest reinforcing the SonosNet signal by hardwiring as many speakers (leaving the BOOST out) as possible. Your Moves and Roams can’t join the SonosNet signal anyway, so you’ve likely already got you network information in your controller’s settings. 

Make sure all WAPS are generating the same SSID and are on the same subnet, as well as not generating their own IP addresses. If you continue to have issues, 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 Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

Two more suggestions. Update your Sonos to the latest. And if you don’t choose to reserve IP addresses, refresh your network by unplugging all Sonos devices, then rebooting your router and WAPs, before plugging in your Sonos. This will force them to get both new DNS information, in case Deezer’s data has changed, as well as ‘new’ IP addresses.