What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags

View all Tags

PRTG Alert Flowcharts



Good Morning! I am looking to see if anyone has put together a flow chart for troubleshooting alerts when a sensor goes down. I have decided to put together a flowchart that I can give to new users to show them the process of troubleshooting when a sensor alert goes off and what to do to recover that sensor. Before I go through the process of creating a flowchart I thought that I would reach out the the PRTG community and see if anyone has developed a flowchart already that wouldn't mind haring that I could adapt to fit our needs.

Thank You!

alerts flowchart prtg-network-monitor

Created on Sep 8, 2020 3:50:59 PM

1 Reply



Hello Lance,

Since there are many different sensors, there are also many different possible reasons why a sensor is down. Therefore there also a lot of possible troubleshooting steps. I'm afraid it's not easy to create a general flow chart here. However for some general troubleshooting steps, these articles could be of interest for you:
- https://kb.paessler.com/en/topic/32813-what-does-error-code-pexxx-mean
- https://kb.paessler.com/en/topic/46863-my-snmp-sensors-dont-work-what-can-i-do
- https://kb.paessler.com/en/topic/1043-my-wmi-sensors-don-t-work-what-can-i-do

Created on Sep 9, 2020 5:47:56 AM by  Timo Dambach [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.