We have a Netflow9 sensor configured, which has stopped working, since updating PRTG software to the latest version.
I have run a Wireshark trace, and can see that the Netflow packets are being sent to the PRTG server.
NetFlow9 Sensor not receiving data after update
Modified on 2025-06-10 22:05:24 +0200
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.
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.
Hello,
Thank you for your KB post.
We will need some information and screenshots from your PRTG, so please open a support ticket and we will continue troubleshooting there. Please refer to this KB article in the ticket.
Please provide us the following information in the ticket:
- the screenshots of the Netflow sensor,
- the results from the Netflow V9 Tester.
Best regards
Sep, 2016 - Permalink