Cannot play to airport express group in sync

[Marco_Sassone]

thanks @noris. Problem solved

One last thing, just wondering if you guys at Support have any news on my Issue 3, of grouped Airplay endpoints randomly going out of sync, as it just happened minutes ago. After an hour or so of good play, suddenly happened in Roon Radio mode. Not a big deal, but just worth mentioning.

Issue 3
Around a year ago I reported a problem of out-of sync grouped Airplay endpoints.

@eric , I jump in this old discussion wondering if a solution has been found. I’ve just set up a NUC7i5 and moved my Core from an iMac -which worked great- to stream to several Airport Express just to find the same problems reported here. Just this morning I had tree Airplay zones grouped playing ok, when I noticed one was out of sync. Then I tried switching on and off in turn the 3 Airport Express but problem got worse and couldn’t have them playing together or sometimes couldn’t play at all …

in which @john helped and the situation got much better.
Unfortunately, I have to report the issue is sometimes, much less, but still happening.
Just worth reminding that two of the three Airplay endpoints (all Airport Express + 1 AppleTV 3rd gen) show a different IP than the network I set up and expect to see( 10.0.1.xxx).