Failing to install Laravel/Homestead with VirtualBox via Vagrant

I'm trying to install Laravel / Homestead with VirtualBox via Vagrant. I followed step by step the installation guide but I keep getting this error:

The box 'laravel/homestead' could not be found or
could not be accessed in the remote catalog. If this is a private
box on HashiCorp's Atlas, please verify you're logged in via
`vagrant login`. Also, please double-check the name. The expanded
URL and error message are shown below:

URL: ["http://ift.tt/1KBs0RO"]

I checked that I use latest version of Vagrant(1.8.7).

via Chebli Mohamed