[vdr] vdr not working in Raspbian 10

Hello,

I've installed vdr from Raspbian packages, to use it with Kodi. I've updated channels.conf by using w_scan2 for a DVB-T2 dongle. TV channels are found.

But I try to watch some channel and I get no data. Tried with two clients Kodi software with its VDR plugin (screen interface) and with vdradmin-am (web interface).

What can I check to find the problem?

Notes: - TV dongle works; if I stop vdr service and use GUI applicacion Kaffeine, I can watch all TV channels. - I see VDR service attending TCP ports 34890 (VNSI), 6419 and 2010

Thank you.