Looks like download.opensuse.org is down.
What are you trying to access?
There are lots and lots of files that might be accessed by any number of apps.
TSU
openSUSE.org is working nicely, there are no problems with the downloads. So start your download again, maybe there was a little hick up yesterday.
Why this post? The OP is clear. Your reply by no means is relating to the OP.