By the looks of that, your downloader isn't handling rejections gracefully.

The servers, (especially the ftp server), are limited to so many simultaneous connections concurrently per client IP. There are a lot of those download programmes which seem to think a sane default of several (tens|hundreds) of simultaneous connections is fine. I disagree.

Those things are evil. They can bog things down no end, hence the limitation.
Your best option would be to download a proper ftp client:
FileZilla - The free FTP solution
and paste the link you get in IE for the download into that, and download it directly. The ftp client is far better suited to ftp transfers, and has full resume capabilities on the download, so you'll be fine doing it across several days.
Btw, I haven't changed anything.

Let me know if that sorts your problem.
Are you getting an error message, or is it just running dog slow?
Btw, you might wish to hold off on downloading the EPC for the moment. I've just popped the latest version up there. Haven't had chance to add it to the downloads list yet though.