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PRTG Network Monitor

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LATEST FEATURE! How to get rid of red monitoring lights forever?



No alarms is good news – every system administrator wants to have all green lights in the monitoring. How can I get rid of the annoying other colors indicating errors in PRTG?

alarms green prtg

Created on Apr 1, 2011 7:33:47 AM by  Daniel Zobel [Product Manager]

2 Replies

Accepted Answer



April Fool's Day Hoax

This article was posted on April 1, 2011. Although the described procedure really works, don't take it too seriously. ;-)

The PRTG Tweak for Calm Nights

Are you annoyed of errors in your network or even sleepless at night, haunted by nightmares about outages in the IT infrastructure you’re responsible for? Now we have the final feature for you: No more red lights in your setup – always everything green. Once the tweak is applied, PRTG’s Device Tree, Maps, Reports, and even the Alarms list will show green sensors only, giving you a good feeling so you can grab another cup of coffee and get some rest.

Root all green

Alarms all green

Four Steps to Worry-Free Monitoring

  • Step 1: Open the PRTG program directory of your PRTG installation
  • Step 2: Go to the \website\css subfolder
  • Step 3: Backup the file customerstyles.css, add the following content to it, and save it:
div.treedevice div.sens div > a

  background-image: url("/icons/led_green.png")!important;

#sensorstats a div {
    background-image: url("/icons/led_green_tall.png")!important;
  • Step 4: Reload the web interface and enjoy your carefree day!

Known Issues

In order to entirely benefit from the new feature of your monitoring solution and experience full recreation during your working hours, you might need a bit of training to belief your web interface and to not get confused of interruptions that might appear, such as the following:

  • You might receive telephone calls or tickets from colleagues complaining about network failures, although PRTG proofs them wrong.
  • You might still get some emails and text messages on your mobile phone, indicating errors. For full relaxation we recommend ignoring those.
  • Although PRTG indicates a proper up-and-running internet connection, you might not be able to surf the web any more. We recommend you enjoy the offline status and read a book.

Created on Apr 1, 2011 7:34:38 AM by  Daniel Zobel [Product Manager]

Last change on Apr 4, 2011 7:40:38 AM by  Daniel Zobel [Product Manager]



What a great article!

All my sensors are showing UP now and I never have to worry about them anymore.

Created on Apr 1, 2011 11:19:14 AM

Last change on Apr 27, 2012 12:34:09 PM by  Manischa Mittal [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.