Monitor Mode checkbox won't stay checked. Why?

asked 2018-01-25 18:12:58 +0000

suisse gravatar image

updated 2018-01-25 19:52:56 +0000

I would like to investigate our QoS issues that I have been tasked with. I would like to know if there is a way to get the beacon frames with their WMM/802.11e values with a Windows 10 machine and onboard wireless card.

Is this possible?

I have installed NPCAP and the latest version of Wireshark, however when I click the checkbox for "monitor mode" the box is instantly erased to remove it.

I am struggling to find a good guide on how to properly install of this and then use the interfaces to capture beacon frames from the AP.

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Has anyone found a solution for this?

jsw gravatar imagejsw ( 2018-09-04 19:39:32 +0000 )edit

I found my problem. The winpcap uninstall left some files before the npcap install.

jsw gravatar imagejsw ( 2018-09-04 19:52:45 +0000 )edit

@jsw Can you elaborate more on the solution? Were there particular files that you had to delete?

awilhite gravatar imageawilhite ( 2019-03-20 17:41:39 +0000 )edit

I got the same issue for no clear reason (same software, same drivers, same wifi adapters).

When I try to check the monitor mode checkbox - it immediate unchecks itself.

Other Applications utilizing monitor mode do no longer work in monitor mode for any of the previously working adapters, leading me to belive this is a npcap issue rater than a WireShark issue.

I have uninstalled and reinstalled, including deleting relevant files.

I'm sure some bright person have solved the issue, and help is desperately appreciated :-)

larswilliam gravatar imagelarswilliam ( 2019-07-04 12:04:12 +0000 )edit