diff --git a/files/provision.sh b/files/provision.sh
index 506ac9e..afd609f 100755
--- a/files/provision.sh
+++ b/files/provision.sh
@@ -46,6 +46,10 @@ function vagrant() {
     exit_if_provisioned
 
     pushd /tmp
+    # Disable IPV6 temporarily for the current build
+    #   Building on windows seems to require it because
+    #     it hangs on add-apt-repository ppa...
+    echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
     # Remove this workaround after bento releases new hyperv box
     vagrant_disable_ssh_password_logins
     vagrant_bento_workaround_openssl_bug
diff --git a/packer/README.md b/packer/README.md
index f9bd5a1..e2db3ca 100644
--- a/packer/README.md
+++ b/packer/README.md
@@ -17,19 +17,29 @@ export GITHUB_API_TOKEN=<token created from https://github.com/settings/tokens>
 # Enter the packer build directory
 cd kdk/packer
 
-# Validate the Packer template
-make validate
-
 # Build the box
 make clean build_virtualbox
 ```
 
 ## Windows Hyper-V Build
 
+Before you start the Windows Hyper-V build:
+
+* Disconnect from your corporate VPN.
+* Ensure you are building from a wired connection.
+  * Wireless connections almost always fail because the build is network-intensive.
+* Configure Hyper-V network settings.
+  * The Hyper-V packer build only works if the vagrant VM build machine is directly on the network.
+  * The packer build is configured to auto-select the network named 'External Switch'.
+  * Create a new network switch called 'External Switch'
+  * Ensure the 'External Switch' is set to Bridge Mode.
+  * Ensure you select the wired physical adapter for the 'External Switch'
+
+
 ```bash
 # Start Powershell as Administrator
-# Start a bash shell in git
-C:\Program Files\git\bin\bash.exe
+# Start a bash shell in git (within the Administrator Powershell)
+"C:\Program Files\git\bin\bash.exe"
 
 # Set a Github API Token so that API call throttling limits are increased
 export GITHUB_API_TOKEN=<token created from https://github.com/settings/tokens>
@@ -37,9 +47,6 @@ export GITHUB_API_TOKEN=<token created from https://github.com/settings/tokens>
 # Enter the packer build directory
 cd kdk/packer
 
-# Validate the Packer template
-make validate
-
 # Build the box
 make clean build_hyperv
 ```
diff --git a/packer/Vagrantfile_hyperv.tmpl b/packer/Vagrantfile_hyperv.tmpl
index 9112d6a..11b3e78 100644
--- a/packer/Vagrantfile_hyperv.tmpl
+++ b/packer/Vagrantfile_hyperv.tmpl
@@ -1,9 +1,21 @@
+# https://github.com/hashicorp/packer/blob/master/builder/vagrant/step_create_vagrantfile.go#L25
+
 Vagrant.configure("2") do |config|
-  config.vm.box = "{{.BoxName}}"
+  config.vm.define "source", autostart: false do |source|
+	source.vm.box = "{{.SourceBox}}"
+	config.ssh.insert_key = {{.InsertKey}}
+  end
+  config.vm.define "output" do |output|
+	output.vm.box = "{{.BoxName}}"
+	output.vm.box_url = "file://package.box"
+	config.ssh.insert_key = {{.InsertKey}}
+  end
   {{ if ne .SyncedFolder "" -}}
-      config.vm.synced_folder "{{.SyncedFolder}}", "/vagrant"
+    config.vm.synced_folder "{{.SyncedFolder}}", "/vagrant"
   {{- else -}}
-      config.vm.synced_folder ".", "/vagrant", disabled: true
+    config.vm.synced_folder ".", "/vagrant", disabled: true
   {{- end}}
-  config.vm.network 'public_network', bridge: 'Default Switch'
+
+  # The line below allows Packer to auto-select the network device
+  config.vm.network 'public_network', bridge: 'External Switch'
 end
diff --git a/packer/packer_hyperv.json b/packer/packer_hyperv.json
index 82e2ab2..8a6324d 100644
--- a/packer/packer_hyperv.json
+++ b/packer/packer_hyperv.json
@@ -7,12 +7,13 @@
       "type": "vagrant",
       "provider": "hyperv",
       "box_name": "bento/ubuntu-18.04",
-      "box_version": "201812.27.0",
+      "box_version": "201912.13.0",
       "source_path": "bento/ubuntu-18.04",
       "add_force": true,
       "skip_add": true,
       "template": "Vagrantfile_hyperv.tmpl",
-      "communicator": "ssh"
+      "communicator": "ssh",
+      "ssh_password": "vagrant"
     }
   ],
   "provisioners": [