problem with boot camp on el capitan

hi guys,
I'm with mbpr 15 late 2013 on el capitan
I'm trying to install windows by the the boot camp and get errors any time.
the error is that the boot camp say i can't download the software update drivers or some like this because of a problem with the net.first of all the internet works great and i also tried to do it from another network and even from hotspot from my iPhone,every time I'm get the same error
I'm upload here a pic of the error i get.
thanks a lot