Stale DNS entries can cause connection errors over time. This guide sets up a scheduled task on your VPS that flushes the DNS cache automatically every week — no ongoing maintenance required.
This task will:
Run every Saturday at 3:00 AM
Flush the DNS cache automatically
Run silently in the background (no pop-ups)
Require no further maintenance after setup
Step #1: Open PowerShell as Administrator
Click Start → type PowerShell
Right-click Windows PowerShell → choose Run as Administrator
Step #2: Copy & Paste the Script Below
Copy the entire script below and paste it directly into the PowerShell window.
Then press Enter once.
$TaskName = "FlushDNS-Weekly"
$Action = New-ScheduledTaskAction -Execute 'powershell.exe' `
-Argument '-NoProfile -WindowStyle Hidden -Command "Clear-DnsClientCache; ipconfig /flushdns | Out-Null"'
$Trigger = New-ScheduledTaskTrigger -Weekly -DaysOfWeek Saturday -At 03:00
$Principal = New-ScheduledTaskPrincipal -UserId "SYSTEM" -LogonType ServiceAccount -RunLevel Highest
if (Get-ScheduledTask -TaskName $TaskName -ErrorAction SilentlyContinue) {
Unregister-ScheduledTask -TaskName $TaskName -Confirm:$false
}
Register-ScheduledTask -TaskName $TaskName -Action $Action -Trigger $Trigger -Principal $Principal `
-Description "Flushes DNS cache weekly (every Saturday at 3:00 AM)" | Out-Null
Write-Host "Scheduled task '$TaskName' created successfully."
Write-Host "It will run every Saturday at 3:00 AM and silently flush the DNS cache."
Once you press Enter, the task will be created automatically.
Step #3: (Optional) Verify or Test the Task
You can confirm it's active or run it immediately:
Action | PowerShell Command |
View the task | Get-ScheduledTask -TaskName "FlushDNS-Weekly" |
Run it manually | Start-ScheduledTask -TaskName "FlushDNS-Weekly" |
Check next run time | Get-ScheduledTaskInfo -TaskName "FlushDNS-Weekly" | Select LastRunTime, NextRunTime |
Step #4: You're Done!
Your VPS will now flush the DNS cache automatically every Saturday at 3:00 AM.
No additional steps or logins are needed — it runs silently under the system account.
If you ever wish to remove it, run this command:
Unregister-ScheduledTask -TaskName "FlushDNS-Weekly" -Confirm:$false
Need Assistance?
Our support team is available 24/7. If you have any questions or run into issues, open a support ticket from your QuantVPS dashboard and we'll get back to you as quickly as possible.