I have a 2.4.0 installation with patches for ddci2 (vdr-2.4.0-06-fix-channel-switch.diff and vdr-2-4-0-camtweaks-1.patch) and it has been working perfect until a few days ago. Then I get "no access" error to all channels. When I see the CAM menu I find that my subscriptions are expired and no new updates over the DVB-C network. Just as a workaround I tried to move the CAM and CI access card to my TV and after about 15 minutes the decoding works again. Moved the CAM and CI back to VDR and now everything is perfect again.
So my question is why does it not update the subscription over the network? How I can debug it? The card reader is from DD (DD DuoFlex CI).