Check-InternetConnectivity.ps1

# just in case the scheduled task runs before the NCSI check... we'll wait for an event to turn up. 5 minutes should be enough time to spot a recent reboot
Do {
    $ev = get-winevent -filterhashtable @{LogName ="Microsoft-Windows-NCSI/Operational"; StartTime = (get-date).AddMinutes(-5)} -MaxEvents 1 -erroraction SilentlyContinue
    Start-Sleep -Seconds 5
} While ($null -eq $ev)

$x = [xml]$ev.toxml()
if (($x.event.eventdata.data| Where {$_.name -eq 'Capability'}).'#text' -eq 0) {
    # we have a problem... tell a grown-up
    Send-TeamsMessage -Uri "(teams webhook URL)" `
     -MessageTitle "URGENT!! WVD Host $(hostname) at (client) reporting no internet access" -MessageText "Please drain it, kick any users off and reboot it. Please acknowledge you've done that so not everyone jumps on. Cheers!"
}