Dsm 7.2.2 and Chromecast

[XavierP56]

Hi,

I haver latest DMS 7.2.2 and I have followed instruction in Documentation to install JellyFin with Container Manager.
The network is in bridged mode and I don't see my Chromecast devices.

Let's say my local network is 192.168.1.x

Jellyfin: 192.168.1.241:5993 (241 is the DS423+ Synology NAS)
Jellyfin opens but does not see chromecast

I guess I need to setup properly the Synology Container Manager Network section but I can't achieve to see the Chromecast devices.

Many thanks for your help !