Sonos S1s
iPad Pro OS 18.6.2
iPhone 16 OS 18.6.2
Linksys Velop Mesh network (Nodes: MX5500GC x 2 , WHW03, WHW03CF, WHW01)
I had this multiple times, periodically one device usually iPhone will lose connectivity to the Sonos install. Today I managed to get it to find it by forgetting the network and rejoining it; simple as that! It has been bugging me for months. I use a Linksys Velop mesh network, and Sonos is on the 5gHz separated network (2.4 and 5 gHz have different SSIDs).
I guess it could mean that the specific node that Sonos is on was different from the iPhone, maybe the mesh does not broadcast the settings effectively across all nodes???