SEPM was working fine until it stopped downloading the anti-virus definitions for 32-bit clients about 12 days ago. I tried to update with LiveUpdate manually. I also downloaded the latest .jdb file and dropped it into the incoming folder for SEPM. Everything seems to be working fine and other updates are downloading and updating, except for the 32-bit definitions.
I checked all other settings but no luck yet in figuring out what the problem is.