For me every time the download is about to finish it says Network Error. I have tried to re-download the game around 6 times now, and it takes about an hour each time, just to get stopped right before it finishes every time.
this sounds like an internet speed issue, it only takes me about 10 minutes to download, i just tried it and had my roommate try it as well. You might want to try using an ethernet cable, or going somewhere with stable internet to download. sorry the file is so big!