Vagrant, Ember-cli, Windows 8.1, Ubuntu. Livereload doesn't work! It doesn't detect changes when I save from Windows

I have this VagrantFile:

Vagrant.configure("2") do |config|
  # Use Ubuntu 14.04 Trusty Tahr 64-bit as our operating system
  config.vm.box = "ubuntu/trusty64"

  # Configurate the virtual machine to use 2GB of RAM
  config.vm.provider :virtualbox do |vb|
    vb.customize ["modifyvm", :id, "--memory", "2048"]
  end

  # Forward the Rails server default port to the host
  config.vm.network :forwarded_port, guest: 4200, host: 4200
  config.vm.network :forwarded_port, guest: 35729, host: 35729

Everything works good, in my Windows I can visit http://localhost:4200 and it works. But, there is a big but.

If I save files of my ember's project in Windows I can't have livereload, and in my vagrant ssh I even can't view the changes detected.

If I go with vagrant ssh and use nano application.hbs and then save something new it detect changes and livereload works in my Chrome's window on Windows.

What the hell is the problem?