can't download the software because of a network problem

I have spent 20 hours trying to install windows 8.1 pro 64 bit on my macbook pro(latest model)

I created a ISO image of my windows dvd, put it on my desktop.

Inside bootcamp where it asks for the Iso Image, I set this to read the ISO file on my desktop

Inside the Task Status window, I see the text "formatting selected drive...", which then changes to "Copying Windows files..."

When the loading % bar in this window reaches around 50%, a window pops up stating.

Can't download the software because of a network problem

I have tried this 10 times now, its the same error over and over, there is nothing wrong with my internet connection or networking, what is the issue?