this has nothing to do with the site response times, the downloads are not hosted on the same server, but in the Amazon spy cloud.

And that, as everybody in the industry knows, is unreliable AF, depending on where you live, AND DOES NOT ALLOW TO RESUME DOWNLOADS (at least not in the configuration that Renderosity is obviously using)..

I just made a purchase, and can not download the 2x100MB since I keep getting 'Interrupted, Network Error', followed by 'can not resume: FORBIDDEN'.

Not everybody on this planet (actually only a small minority) is sitting on 10TB optical fibre, and not allowing to resume downloads is plain and simple annoying and basically 'racist'. ;)

The consequence is simple: this was my last purchase here, even DAZ3D is able to resume downloads with their Install Manager, and even pirate sites are smart enough to use file hosters that allow resuming...