Vagrant-ParallelsのUbuntuで接続が拒否されました。

Mac m1で3つのUbuntu 20.04-arm64サーバーを使用しようとするとvagrant upループエラーが発生します。

==> db: Waiting for machine to boot. This may take a few minutes...
    db: SSH address: :22
    db: SSH username: vagrant
    db: SSH auth method: private key
    db: Warning: Connection refused. Retrying...
    app2: Warning: Connection refused. Retrying...
    app1: Warning: Connection refused. Retrying...
    db: Warning: Connection refused. Retrying...
    app2: Warning: Connection refused. Retrying...
    app1: Warning: Connection refused. Retrying...
    db: Warning: Connection refused. Retrying...

さまようファイル:

# -*- mode: ruby -*-
# vi: set ft=ruby :

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  # General Vagrant VM configuration.
  config.vm.box = "jeffnoxon/ubuntu-20.04-arm64"
  config.ssh.insert_key = false
  config.vm.synced_folder ".", "/vagrant", disabled: true
  config.vm.provider :parallels do |v|
    v.memory = 256
    v.linked_clone = true
  end

  # Application server 1.
  config.vm.define "app1" do |app|
    app.vm.hostname = "orc-app1.test"
    app.vm.network :private_network, ip: "192.168.60.4"
  end

  # Application server 2.
  config.vm.define "app2" do |app|
    app.vm.hostname = "orc-app2.test"
    app.vm.network :private_network, ip: "192.168.60.5"
  end

  # Database server.
  config.vm.define "db" do |db|
    db.vm.hostname = "orc-db.test"
    db.vm.network :private_network, ip: "192.168.60.6"
  end
end

何が間違っている可能性がありますか？