My Sonos connect 2 can’t showing up in my roon

[Michael_Harris]

There is a full threads below, the first have contributions from Sonos Support

Sonos devices disappearing after updating

+1 on this issue. Started after latest 1.8 update yesterday. Have 3 Sonos devices: 2 x Play 1 and 1 x Play 5. All connected via WiFi. The 2 x Play 1 keep disappearing from both Roon zone picker and Audio setup tab. Only way to bring them back is to reboot my ROCK. They are then available until randomly disappearing again. This has happened 4 times since updating 1.8 less than 24 hours ago.

and here

Roon core no longer sees my Sonos audio device

This may turn out to be the kiss of death but my Sonos devices have been available for the last 3 days. Only thing I did 3 days ago was: remove devices from Roon remove reserved IP for Sonos devices restart network reassign reserved IP for Sonos devices restart network add devices back to Roon. Kind of missing restarting ROCK several times a day now…