Hi There,
I'm in western part of europe and download speed is very slow max between 400 and 750 kb/s and timeout errors. it takes me several hours to download. So I quit the installation. I'm not the first person complaining about this issue. You definitly should switch to another CDN increase download bandwith or make use of several mirrors around the world. See attached download graph. Tried it several time's no improvement.
It seems like a bandwith restriction at your CDN provider. Because other's have the same download limit.
UPDATE 12 dec 2016:
After buying and download of version 11 from cdn.x-plane.com on 11 dec tehe speed was still low and unstable.
Today 12 dec the download is at maximum speed of my ADSL connection and stable al the time See attachment!