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Npcap Bug Report #1743

vaibhavmadan opened this issue Sep 16, 2019 · 0 comments


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commented Sep 16, 2019

I have bought a Netgear AC1200 WiFi USB Adapter. I am trying to sniff packets but I am not getting any packets. Please find attached the output of DiagReport.bat file as well as NPFInstall.log file. I see the checkbox for Monitor mode in wireshark. I am also able to successfully put the device in monitor mode via the WLANHelper.exe command but I am unable to capture packets after doing all this.

One thing I have noticed is that if I give the command WLANHelper.exe modes, then I get the error:
C:\Windows\System32>WlanHelper.exe 8913d797-a429-4a03-99a6-5793a73d61ff modes
Error: makeOIDRequest::My_PacketOpenAdapter error (to use this function, you nee
d to check the "Support raw 802.11 traffic" option when installing Npcap)
I did select the option "Support raw 802.11 traffic" when I installed npcap. Please advise what should I try.



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