Bluesound NODE (2021) cannot be found by ROON , how to solve?

Add images

Use Bluos, the NODE operates normally. It has the latest firmware already.

I cannot connect ROON app (downloaded from Google Play and Apple Store; I am still in a trial period) in my Samsung cellular phone and iPad to NODE (2021).

Lacking of something ?

Please help


The node is a device for playback only. Roon needs a server to run on Linux, mac, windows or roon own OS ROCK.