I didn't have issues at all, took me 15-20min to download patch and to redownload full take me 40mins tops. I open my ports i have 6MB download 512kb upload using AT&T. I really don't know why everyone having issue and some are not but i agree SE should just have a webpage you could download each patch.

btw there is a website that allow you to download each patch go look it up on Google.