PowerShell script halts execution when Windows XP PC is locked
- by jshin47
I have the following script that does a continuous ping and reports failures. It works fine, except the loop apparently "suspends" when the computer is locked. I have confirmed this by starting the script, immediately locking the PC, waiting 10 minutes, and seeing how many pings have occurred. It is nowhere near the expected number. What could be the culprit?
Write-Host "Entering monitoring loop..." -Background DarkRed
$ping = new-object System.Net.NetworkInformation.Ping
$count_up = 0
$count_dn = 0
$count_dd = 0
while ($true) {
$result = $ping.send("10.1.1.1")
if ($result.Status -eq "Success") {
$count_up++
$count_dd = 0
}
else {
$count_dn++
$count_dd++
$this_date = Get-Date
Write-Host "VPN ping failed at time " $this_date -Background Magenta
if ($count_dd -gt 3) {
Write-Host "***VPN is Down***" `a
send_mail_notification("VPN is Down", "")
}
}
if ($Host.UI.RawUI.KeyAvailable -and ("q" -eq $Host.UI.RawUI.ReadKey("IncludeKeyUp,NoEcho").Character)) {
Write-Host "Exiting monitoring loop..." -Background DarkRed
break;
}
Start-Sleep -m 250
}
$total = $count_up + $count_dn
$uptime = 100 * $count_up / $total
Write-Host $count_up " out of " $total " pings for a " $uptime "% uptime."
