Download stoped

I have a problem with download the game.
I download the Launcher, and i wannted to install fortnite, but the downloading in launcher stopped at 4% and that’s sit.
it show’s me the downloading is 0 kb/s. I don’t know where’s the problem, because i have a normal network, launcher downloaded in 2s, same as these 4% in about few seconds with 2mb/s speed net, now it’s stop.
Can i get some help guys?