dlna server not visible

I have fresh installation of proxmox on dell wyse 5070.
Then i installed jellyfin(unprivileged).
Jellyfin is up, everything works correctly via web page
http://192.168.1.127:8096/web/index.html
i shared dedicated folder created on jellyfin server

But active dlna server is not visible in network.
I can ping jellyfin server from my windows computer.
But i cant discover dlna server on this machine
I tried with plex, but this same problem.

How to identify problem?