Doesn't download and update 'program updates' automatically

Since I installed Comodo Internet Security version 6.3.302093.2976 the updates are never downloaded (and installed) automatically. In the advance settings menu the ‘automatically program updates’ is checked. I tried reinstalling CIS. So what else should I try?
Thanks a lot.

Hi Rachel,
There has been no program updates since V6.3.302093.2976, this is the current version.
If we are talking about Database updates, this has its own setting in the same screen as the program updates.
Configure Program and Virus Database Updates

Kind regards.