I'm new to PTRG so please bear with me.

I am attempting to add the packet sniffer sensor to my local probe. When configuring it, the network adapters setting is grayed out and says "No network adapters available." I currently have the onboard NIC collecting SNMP traffic. I also have a PCIE NIC with two interfaces. I'm hoping to use one of those to receive traffic using SPAN.

I have searched for awhile and haven't come up with a solution. One thing I found was to check the administration tool in the Probe Settings and Monitoring tab to make sure the interfaces show up and select auto. That looks fine to me.

One other note, I'm able to capture traffic through wireshark on all of the interfaces.

Hopefully I'm just missing something simple. Any help would be appreciated.

Thanks!

Article Comments

Hello,

thank you for the KB-Post. Do the NICs have both MAC and IP-Addresses set in their WIndows NIC-Settings? Usually having those not set it the problem, when PRTG reports "No network adapters available".

best regards.


Oct, 2019 - Permalink

Thank you for the reply!

Yes, all three interfaces have physical and ip addresses.

ipconfig output


Oct, 2019 - Permalink

Okay, then we need to check the logs here. Please forward us a Support Bundle including the system log files for analysis, with a note to this KB-Thread here please.

This can be done via the "Contact Support" ribbon in the lower right corner of the web interface.


Oct, 2019 - Permalink

Okay, I've sent the support bundle.

Thanks!


Oct, 2019 - Permalink

Hi,

What was the solution for this issue? I am experiencing similar.

Thanks,


May, 2020 - Permalink

Hi there,

Please check whether the engine NPCAP is installed on the server where the Probe service runs. PRTG needs this engine to list the network cards.


May, 2020 - Permalink

Hi Moritz, thanks for the reply, I reinstalled npcap separately as suggested by support and it is now working fine and I see all adaptors , it is strange as I uninstalled Wireshark/npcap and reinstalled it previously and it didn't work, perhaps it doesn't like the Wireshark/npcap bundle.

But working now so all good :-)


May, 2020 - Permalink

Hi, I have a similar problem except I could see all my network adapters and sniffer was working ok. Today, with no new software installed (Except windows 2004 release being installed) there is only the loopback available to select. I have no npcap, winpcap was installed. I installed PRTG onto a clean install of win10. In administrator I can see the wifi nic. Can you help me resolve this


May, 2020 - Permalink

Hello,

The newer versions of PRTG do not use winpcap anymore, so please install npcap and check if the interfaces are being shown.


May, 2020 - Permalink

Hi

i uninstalled winpcap and installed npcap and that didn't fix it.

I left it for 3 days and now it is working again. Maybe the win10 2004 upgrade broke something that they have now fixed.

thanks


May, 2020 - Permalink

Problem occurred after Win 10 2004 upgrade. No interfaces were being shown. Uninstalling npcap and installing npcap ver 0.9995 resolved issue for me. Thank you Moritz : )


Jul, 2020 - Permalink