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How do I activate UPnP for my Fritz!Box?



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Using my Fritzbox with PRTG's AVM Fritz!Box sensor I get the error message

(401) Invalid Action

How do I activate transmission of status information via Universal Plug and Play (UPnP) in my Fritz box, so I can use this sensor?

avm bandwidth bandwidth-monitor fritzbox prtg

Created on Jul 9, 2012 10:47:05 AM by  Daniel Zobel [Paessler Support]

Last change on Jul 9, 2012 10:56:34 AM by  Daniel Zobel [Paessler Support]

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Accepted Answer



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Important note: The AVM FRITZ!Box WAN Interface sensor is deprecated as of PRTG version 16.1.23.

Please see the following article for more details and possible alternatives:

This article applies to PRTG Network Monitor 12 through 15

Activate Status Information via UPnP on Your Fritz!Box

In order to use the AVM Fritz!Box Sensor in PRTG, you do not need to enter credentials, but your box must provide traffic values via UPnP. You can activate this functionality in the web interface of your Fritzbox.

Depending on the type and firmware of your box, the UPnP setting can be found in different menus of your Fritz!Box web interface.

Look for Transmit status information over UPnP (recommended) or Statusinformationen über UPnP übertragen (empfohlen).

This setting can be found, for example, under

  • System | Network Settings
  • Home Network | Network | Tab: Programs
  • Home Network | Network | Tab: UPnP

For detailed information, please see

Sample Screen Shots of Fritz!Box Settings

Created on Jul 9, 2012 10:56:25 AM by  Daniel Zobel [Paessler Support]

Last change on Mar 21, 2016 3:03:47 PM by  Gerald Schoch [Paessler Support]



Your Vote:



For some Fritzbox versions he sensor does not work, see:

Created on Mar 25, 2014 7:18:09 PM by  Dirk Paessler [Founder Paessler AG] (10,921) 3 4

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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.