I have three Volumio instances in my house on the same Wifi network:
Raspberry Pi 4 + HiFiBerry DAC2 Pro + Denon F88 Amp (primary instance)
Raspberry Pi 3 + HiFiBerry DAC2 Pro + Denon F88 Amp
Raspberry Pi 3 + Active speakers
They all have multi-room playback enabled. We play music the whole day without issues, and I’m very happy with this setup.
There is one issue though. Every morning we have to re-group the instances. Sometimes it’s not possible to add one of the secondary instances to the group, and then the only remedy is to restart it.
What could be the problem? And is there a way to get those groups to be more persistent?
At the moment it is not possible to get the groups to be persistent if you turn off the devices. We can take a note of your suggestion and keep it in our todo list.
About the issue on the grouping of the secondary instances we need a log, saved just after the issue happens, so we can investigate further.
When you’ve done please raise a support ticket HERE
Enter all the requested details and paste the log link
Thanks for the prompt reply! The thing is, we don’t turn off the devices. In the evening, we pause the music, but everything stays turned on. Nine out of ten times, one or two devices have left the group the next morning. At first, I thought it was related to a temporary drop in the Wifi but it’s happening regularly.
I’ll collect logs tomorrow morning and open a support ticket.
In the meantime, I located the issue. Aside from the groups falling apart, we often had hiccups in the playback, and occasionally some units going out of sync. We had three Wifi units, and they had to be positioned very precisely for everything to play, so I figured the network was spread too thin.
After adding two additional Wifi extenders, all the issues we had are gone. Groups stay intact and there are no more hiccups or sync issues. I even added a fourth Volumio instance and everything is still playing smoothly.