My system includes:
1 x Connect (ZP90) (connected to LAN via ethernet)
2 x Connect:Amp (ZP120)
All running S1 with the latest firmware and software.
Some time ago I start observing the following behaviour.
If I start playback on Connect it plays fine. Once I group Connect with a single or both Connect:Amps then Connect stops playing. If I ungroup Connect, then it continues normal playback. Anyway Connect:Amps play correctly if grouped.
The issue first appeared back in 2012 and then Sonos technical support suggested to go :1400/advconfig.htm and set FirstZP to Enabled and :1400/reboot. Currently the trick doesn’t do its job.
Any other ideas on how to overcome the issue?