Patches won't Work...?

So, everytime a new patch comes out it never works for me. It stops at 33% and says error, can not download. I tried looking on forums, but nothing they said worked. So far the only thing that works for me is deleting the game and reinstalling it. Even though this does work, it takes very long and I do not like doing it everytime we get a new patch. I need a better solution. T_T