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

Unknown Status



We are currently using PRTG Network Monitor x64

We generate some reports in PRTG which show us up and downtime periods for selected sensors. The table of information generated in the reports includes periods of 'unknown'. Is there any way to discount these unknown periods, or show them as 'up'?

report status unknown

Created on Jan 8, 2013 3:44:55 PM

3 Replies




the unknown state means that PRTG has no information about the sensor at that time, so not even down (and no up either). That may have been times where the sensor was paused or PRTG was not even running. It's not possible (and not intended actually) to leave this out of a report, because we think it is important that PRTG "is honest" and tells you about times when it has no information, or even turn this into "Up".

best regards.

Created on Jan 8, 2013 5:02:15 PM by  Torsten Lindner [Paessler Support]

Last change on Jan 9, 2013 12:41:37 PM by  Torsten Lindner [Paessler Support]




Thank you for your reply.

Just to confirm, the status is 'unknown' and not 'unusual'. Does your statement still apply?

Created on Jan 9, 2013 11:41:49 AM



I apologize for the typo, indeed 'unknown' was meant in my first response. I did correct that.

Created on Jan 9, 2013 12:42:20 PM by  Torsten Lindner [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.