Are you using S2, if so goto "Settings/System/Groupsâ. Any groups you create in that section of the App will then appear off the System âRoomsâ tab and appear at the top of the grouping page. See the âsave groupsâ feature mentioned in this support link:
https://support.sonos.com/s/article/3391
To improve group playback there are some useful tips below:
Check to see that your router is using a âfixed non-overlapping WiFi channel (1, 6, or 11) for its 2.4Ghz band and also, if the router allows, set a channel-width of 20Mhz only for that band, to help reduce possible interference.
If you already have a wired Sonos device (connected to the local router), also set the SonosNet channel so that it is 5+ channels away from your chosen router channel. Always try to ensure the wired device is positioned well away from the router, or any âotherâ wireless device âŠat least one metre away.Â