Is UPnP a rubish protocol ???

[lyapounov]

(16-09-2022 13:20)stefano_mbp Wrote:  ... so renderer (Klimax) and Synology are connected to a switch (*) which is in turn connected to a Mesh antenna ... I don't know Mesh networks, I have a wifi network based on Apple Airport Extreme and Airport Express (which, however, is only used by the tablet ... and is very stable).
Could you try, at least temporarily, to connect the switch (*) to the router (thus eliminating the wifi network)?
… btw … when your Klimax disappears is it still on the network? That’s to say : can you find it using a network scanner like Fing? or using another control point app like Linn or MConnect?

Yes, the Klimax is always on the network. The TCP/IP side is working as charm.

When the Klimax dissapears, what I do is close the Lumin app on my iPad, and reopen it again; and miracle, the Klimax is back !

So again, the network side is remarquably stable. It is UPnP which does not work... Therefore the name of my thread ;-)