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DNS Sensor not checking in



I have one DNS sensor that is always "down". However, I can ping it by IP Address, Local domain name, and outside domain name. I have checked that the listed DNS name in PRTG is correct but still no change.



dns prtg sensor

Created on Feb 2, 2018 5:18:46 PM

3 Replies



Hello Jeff,

What error message do you get in the sensor? You can also enable "Write result to disk" in the sensor's "Settings" tab. With the next scan it will write one or several result-files into "C:\ProgramData\Paessler\PRTG Network Monitor\Logs (Sensors)" of your PRTG server (or on the Remote Probe if applicable). All files have the sensor's numeric ID in their filenames. The sensor ID can be found on the sensor's "Overview" tab. Note: In case you've configured a different data-path in PRTG Administration Tool, you need to look there for subfolder "Logs (Sensors)".

I would recommend to send us those result files by email:

  • [email protected]
  • Subject should contain (Case PAE990766), then we know it belongs to this thread and the email will be forwared to me to further work on it.

Kind regards,


Created on Feb 5, 2018 8:05:04 PM by  Erhard Mikulik [Paessler Support]



The error code I get is PE002.

Created on Feb 7, 2018 2:51:09 PM



Ok, so "No Response". Please see this thread for possible solutions and/or what else you can check.

Created on Feb 8, 2018 12:51:56 PM by  Erhard Mikulik [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.