We couldn't detect an IP address that was routable to this machine

O problema ainda persiste.

Pode ser o IP que estou usando? 192.168.50.10 ?

Não tenho experiência com AWS.

Obrigado pela ajuda.

Estou usando a seguinte configuração (Vagrantfile):

Vagrant.configure("2") do |config|
  #config.vm.box = "hashicorp/precise32"
  config.vm.box = "ubuntu_aws"
  config.vm.box_url = "https://github.com/mitchellh/vagrant-aws/raw/master/dummy.box"

  config.vm.provider :aws do |aws, override|
      aws.access_key_id = "xxxxxx"
      aws.secret_access_key = "xxxxxxxxx"

      aws.keypair_name = "devops"
      aws.ami = "ami-4e79ed36"
      aws.security_groups = ['devops']
      aws.region = "us-west-2"

      override.ssh.username = "ubuntu"
      override.ssh.private_key_path = "devops.pem"
  end

  config.vm.define :web do |web_config|
        web_config.vm.network "private_network", ip: "192.168.50.10"
        web_config.vm.provision "shell", path: "manifests/bootstrap.sh"
        web_config.vm.provision "puppet" do |puppet|
            puppet.manifest_file = "web.pp"
        end
        web_config.vm.provider :aws do |aws|
            aws.tags = { 'Name' => 'MusicJungle (vagrant)'}
        end
  end
end