Tvheadend

Hello,
with last TVH for synology (4.1.2076) when I set a recording, it always records for some time (could be a few minutes) and then it stops getting streaming data.
The results is a little file with only that few minutes of video but the recording process go on until the scheduled finish time and mark it correctly completed.
So i record for 1 hour, it last for 1 hour and then mark it completed but the file size and the video is only a few minutes.

What can I try to debug the problem?

I have also a problem when watching streaming tv. The picture and audio freeze after some minutes. I only have to stop and play again on the same channel to resume viewing.
I think that it is the same problem as recording but, since the problem is raising in recording mode, I am sure that the client I am using for receiveing the stream (Kodi) is not the problem (when recording Kodi is not involved).

Using other clients with the same IPTV streams I have to problems and no stopping streaming or freezing.

Thank you for your help.

Chris