Hi bl0w,
here are some live oscam logs, taken on the same channel, from server (server_soggiorno) and working client (mansarda), and then from the same server (server_soggiorno) and non working samsung tv client (tv_samsung).
server_soggiorno (OSCam: 1.20_svn Build: r11523) when receiving ecm from working Gigablue client:
Working Gigablue client (OSCam: 1.20-unstable_svn Build: r11211)
server_soggiorno (OSCam: 1.20_svn Build: r11523) when receiving ecm from Samsung Tv client:
NON Working Samsung Tv client (OSCam: 1.20-unstable_svn Build: r11390):
The line "2021/03/15 00:03:27 70B16944 c (dvbapi) Demuxer 0 no suitable readers found that can be used for decoding!" makes me think, but I don't understand because reader is correctly defined in oscam.server