This was the original download location for Wolfenstein Grosse TC, and here you can see how it actually looked like and what's the filesize. Please let me know if you find any place possible to download it.
Well it happened to me once, on a 99 MB file which it stopped right at 97,71 MB, I can still remember it... It drove me so crazy that I can't forget it... o.o
I'm glad to hear that, of course, the hardware part... Well, I think you should enhance your connection too. I hope they fix your problems while you're running my TC.