I CANNOT DOWNLOAD THE BOOK

hI

I have problem in downloading the book after authorization, it is large book ( one of the pathology references) and cost me alot!

I was happy to find it as ebook! but when I download it, it is interrupted in the 25% ! or less!

My internet is fast and I can download lots of files including movies !

But this file keep disconnecting!

So what is the solution here?

Thanks