Media upload stops at 0%

@joshuaabenazar how odd that this fixed the problem. thanks for your help!

@tld - Actually your media page was resulting in a 404 - page not found error. So that was the root of this issue. The re-saving of permalinks fixes this issue.

Even while uploading an image it posts the media to the same url followed by the upload endpoint hence it was causing the upload to break too.