Having issues with liveupdate.

I have 118.57 MB that needs to be downloaded, I tried it last night, but not all of the updates were successful. This happened all of a sudden, my liveupdate was working fine before this. But I have encounter this issue in the past a couple of times, it would usually resolve itself or I would have to keep trying the liveupdate. Any tips on what I should do? Do I need to update manually?