par défaut: Avertissement: Déconnexion de la connexion distante. Réessayer

Quand je lance vagrant upj'obtiens:

D:\GitHub\website\rails-dev-box>vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Checking if box 'ubuntu/trusty32' is up to date...
==> default: Clearing any previously set forwarded ports...
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
==> default: Forwarding ports...
    default: 3000 => 1234 (adapter 1)
    default: 22 => 2222 (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2222
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Warning: Connection timeout. Retrying...
    default: Warning: Remote connection disconnect. Retrying...
    default: Warning: Remote connection disconnect. Retrying...
    default: Warning: Remote connection disconnect. Retrying...
    default: Warning: Remote connection disconnect. Retrying...
    default: Warning: Remote connection disconnect. Retrying...
    default: Warning: Remote connection disconnect. Retrying...
    default: Warning: Remote connection disconnect. Retrying...

Cet avertissement sera pour toujours ..

Ce que j'ai remarqué, c'est que si j'ai commencé la VM manuellement ( sans vagabond ), cela fonctionnera sans aucun délai, mais seulement Si je l'ai activé la Carte 2 à VM paramètres comme ceci:par défaut: Avertissement: Déconnexion de la connexion distante. Réessayer
Comment puis-je activer la Carte 2 de la VM lors de l'utilisation de vagrant up ?

MODIFIER

Vagrantfile est:

# -*- mode: ruby -*-
# vi: set ft=ruby :
Vagrant::Config.run do |config|
#     config.vm.network :hostonly, "192.168.50.4"
end



Vagrant.configure('2') do |config|

  config.vm.box      = 'ubuntu/trusty32'
  config.vm.hostname = 'rails-dev-box'
# config.vm.synced_folder ".", "/vagrant/web" #, type: "nfs"

config.vm.provider :virtualbox do |vb|
  vb.gui = true
end

 config.vm.boot_timeout = 120

 #  config.winnfsd.uid = 1
   # config.winnfsd.gid = 1

  config.vm.network :forwarded_port, guest: 3000, host: 1234

  config.vm.provision :shell, path: 'bootstrap.sh', keep_color: true
end

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