Update provision.ps1

Vagrant/scripts/provision.ps1

@@ -21,7 +21,11 @@ If (!(Test-Path $ProfilePath)) {
 }
 
 # Ping DetectionLab server for usage statistics
-curl -userAgent "DetectionLab-$box" "https://ping.detectionlab.network/$box" -UseBasicParsing | out-null
+Try {
+  curl -userAgent "DetectionLab-$box" "https://ping.detectionlab.network/$box" -UseBasicParsing | out-null
+} Catch {
+  Write-Host "Unable to connect to ping.detectionlab.network"
+}
 
 Write-Host "$('[{0:HH:mm}]' -f (Get-Date)) Disabling IPv6 on all network adatpers..."
 Get-NetAdapterBinding -ComponentID ms_tcpip6 | ForEach-Object {Disable-NetAdapterBinding -Name $_.Name -ComponentID ms_tcpip6}