e. Running sudo dpkg-reconfigure wireshark-common has only effect on the deb package installed Wireshark programs, not the locally build and installed dumpcap. Enabling Non-root Capture Step 1: Install setcap. The capture session could not be initiated (failed to set hardware filter to promiscuous mode). This is done from the Capture Options dialog. This package provides the console version of wireshark, named “tshark”. Metadata. 1. connect both your machines to a hub instead of a switch. It prompts to turn off promiscuous mode for this. Some tools that use promiscuous mode - Wireshark, Tcpdump, Aircrack-ng, cain and abel, Snort, VirtualBox… When the computer is connected directly to our Asus router (between the broadband and the firewall) Wireshark works perfectly. "Monitor" mode disables filtering at L1, so that you see anything that the radio is capable of receiving. You can set a capture filter before starting to analyze a network. Re: [Wireshark-dev] read error: PacketReceivePacket failed. 8) it is stored in preferences and the state is saved when exiting and set upon re-entering the gui. In the Start Menu search bar type cmd and press SHIFT + CTRL + ENTER to launch with Elevated Privileges. answered 26 Jun '17, 00:02. hey i have Tp-Link Wireless Usb And I Try To Start caputre with wireshark i have this problem. Be happy Step 1. 17. 5. You can perform such captures in P-Mode with the use of this provider on the local computer or on a specified remote computer. 3. Wireshark visualizes the traffic by showing a moving line, which represents the packets on the network. press the right arrow and enter for yes. The capture session could not be initiated on capture device "DeviceNPF_{A9DFFDF9-4F57-49B0-B360-B5E6C9B956DF}" (failed to set hardware filter to promiscuous mode. Optionally, this can be disabled by using the -p parameter in the command line, or via a checkbox in the GUI: Capture > Options > Capture packets in promiscuous mode. 此问题已在npcap 1. Then I open wireshark and I start to capture traffic on wlo1 interface but I don't see any packets from source 192. wireshark enabled "promisc" mode but ifconfig displays not. If you're on a protected network, the. I have understood that not many network cards can be set into that mode in Windows. Enter the following command to know the ID of your NIC. Select File > Save As or choose an Export option to record the capture. The error: The capture session could not be initiated on capture device "\Device\NPF_{C549FC84-7A35-441B-82F6-4D42FC9E3EFB}" (Failed to set hradware filtres to promiscuos mode: Uno de los dispositivos conectados al sistema no funciona. If that's a Wi-Fi interface, try unchecking the promiscuous mode checkbox. 11 frame associated with the currently connected access point, intended for that receiver or not, to be processed. ps1 - Shortcut and select 'Properties'. 1 Answer. So basically, there is no issue on the network switch. The Capture session could not be initiated on the interface DeviceNPF_(780322B7E-4668-42D3-9F37-287EA86C0AAA)' (failed to set hardware filter to promiscuous mode). ) 3) The channel being sniffed will be the channel the MAC was associated to when Wireshark is started. An answer suggests that the problem is caused by the driver not supporting promiscuous mode and the Npcap driver reporting an error. In the Hardware section, click Networking. Please check that "DeviceNPF_{1BD779A8-8634-4EB8-96FA-4A5F9AB8701F}" is the proper interface. answers no. 168. cellular. This field allows you to specify the file name that will be used for the capture file. Please check that "\Device\NPF_{9E2076EE-E241-43AB-AC4B-8698D1A876F8}" is the proper interface. OSError: DeviceNPF_{5E5248B6-F793-4AAF-BA07-269A904D1D3A}: failed to set hardware filter to promiscuous mode: A device attached to the system is not functioning. Capture is mostly limited by Winpcap and not by Wireshark. The issue is caused by a driver conflict and a workaround is suggested by a commenter. To enable the promiscuous mode on the physical NIC, run the following command on the XenServer text console: # ifconfig eth0 promisc. In such a case it’s usually not enough to enable promiscuous mode on your own NIC, but you must ensure that you’re connected to a common switch with the devices on which you want to eavesdrop, and the switch must also allow promiscuous mode or port mirroring. 328. 41", have the wireless interface selected and go. Improve this answer. Please check that "DeviceNPF_{62909DBD-56C7-48BB-B75B-EC68FF237032}" is the proper interface. I googled about promiscuous. You could sniff the wire connecting the APs with a mirror port/tap/whatever, and get the data between the devices that way. I have WS 2. 107. This is likely not a software problem. hey i have Tp-Link Wireless Usb And I Try To Start caputre with wireshark i have this problem. or. Some tools that use promiscuous mode - Wireshark, Tcpdump, Aircrack-ng, cain and abel, Snort, VirtualBox…When the computer is connected directly to our Asus router (between the broadband and the firewall) Wireshark works perfectly. What is promiscuous Mode Where to configure promiscuous mode in Wireshark - Hands on TutorialPromiscuous mode:NIC - drops all traffic not destined to it- i. 11 layer as well. You can also click on the button to the right of this field to browse through the filesystem. Click the Security tab. (31)) Please turn off Promiscuous mode for this device. By holding the Option key, it will show a hidden option. promiscousmode. The one item that stands out to me is Capture > Options > Input Tab > Link-Layer Header For the VM NIC is listed as Unknown. i got this error: The capture session could not be initiated (failed to set hardware filter to promiscuous mode). su root - python. 212. To cite from the WireShark Wiki: "However, on a "protected" network, packets from or to other hosts will not be able to be decrypted by the adapter, and will not be captured, so that promiscuous mode works the same as non-promiscuous mode. If you see no discards, no errors and the unicast counter is increasing, try MS Network Monitor and check if it captures the traffic. Im using wireshark on windows with an alfa network adapter, with promiscuous mode enabled. 7) and the hosted vm server is installed with Wireshark to monitor the mirrored traffic. 0 packets captured PS C:> tshark -ni 5 Capturing on 'Cellular' tshark: The capture session could not be initiated on interface '\Device\NPF_{CC3F3B57-6D66-4103-8AAF-828D090B1BA9}' (failed to set hardware filter to promiscuous mode). 0. wcap file to . i got this error: The capture session could not be initiated (failed to set hardware filter to promiscuous mode). However, I am not seeing all packets for my android phone but rather just a few packets, which after research seems to be a multicast packets. However, when Wireshark is capturing,. 4k 3 35 196. 985 edit retag flag offensive close merge delete CommentsWireshark has a setting called "promiscuous mode", but that does not directly enable the functionality on the adapter; rather it starts the PCAP driver in promiscuous mode, i. 70 to 1. You're likely using the wrong hardware. 4k 3 35 196. One Answer: 0. Select the virtual switch or portgroup you wish to modify and click Edit. To be specific, When I typed in "netsh bridge show adapter", nothing showed up. I don't where to look for promiscuous mode on this device either. (failed to set hardware filter to promiscuous mode: A device attached to the system is not functioning. 50. Network adaptor promiscuous mode. Your code doesn't just set the IFF_PROMISC flag - it also clears all other flags, such as IFF_UP which makes the interface up. For example, type “dns” and you’ll see only DNS packets. 1:9000) configuration and Wireshark states it cannot reach the internet although the internet works fine and we can manually download updates just not through the app itself. "Promiscuous Mode" in Wi-Fi terms (802. After installation of npcap 10 r7 I could capture on different devices with Wireshark 2. For the host specify the hostname or IP Address. views no. That command should report the following message: monitor mode enabled on mon0. When you know the NIC ID enter the following command to enable the Promiscuous Mode, remember to add the. If the field is left blank, the capture data will be stored in a temporary file, see Section 4. I am able to see the ICMP traffic from my target device to my hooter device which are both on WiFi. Pick the appropriate Channel and Channel width to capture. 3. I am studying some network security and have two questions: The WinPCap library that Wireshark (for Windows) is using requires that the network card can be set into promiscuous mode to be able to capture all packets "in the air". It does get the Airport device to be put in promisc mode, but that doesn't help me. Please check to make sure you have sufficient permissions and that you have the proper interface or pipe specified. If you are only trying to capture network traffic between the machine running Wireshark or TShark and other machines on the network, are only interested in regular network data, rather than 802. Promiscuous mode doesn't work on Wi-Fi interfaces. Put this line into that file: <your_username> ALL = NOPASSWD: /usr/bin/wireshark. Open a terminal by pressing Ctrl + Alt + T and type the following commands: sudo dpkg-reconfigure wireshark-common. It's probably because either the driver on the Windows XP system doesn't. However, typically, promiscuous mode has no effect on a WiFi adapter in terms of setting the feature on or off. The mode you need to capture traffic that's neither to nor from your PC is monitor mode. Promiscuous Mode. I am having a problem with Wireshark. The following will explain capturing on 802. Whenever I run wireshark, I am only seeing traffic that on the Linux server. The. So it looks as if the adaptor is now in monitor mode. If this is a "protected" network, using WEP or WPA/WPA2 to encrypt traffic, you will also need to supply the password for the network to Wireshark and, for WPA/WPA2 networks (which is probably what most protected networks are these. Rodrigo Castro; Re: [Wireshark-dev] read error: PacketReceivePacket failed. So I booted up a windows host on the same vlan and installed wireshark to look at the traffic. Promiscuous mode allows a network device to intercept and read each network packet that arrives in its entirety. However, no ERSPAN traffic is getting observed on Wireshark. Solution: wireshark-> capture-> interfaces-> options on your atheros-> capture packets in promiscuous mode-set it off. In such a case it’s usually not enough to enable promiscuous mode on your own NIC, but you must ensure that you’re connected to a common switch with the devices on which you want to eavesdrop, and the switch must also allow promiscuous mode or port mirroring. That means you need to capture in monitor mode. As the capture. This is because Wireshark only recognizes the. Well the problem is not in the network card because VMware always enables promiscuous mode for virtual interface. I've tried each of the following, same results: Turning off the 'Capture packets in promiscuous mode' setting, in Wireshark Edit > Preferences > Capture. [Winpcap-users] DLink DWA643 support - promiscuous mode Justin Kremer j at justinkremer. Guy Harris ♦♦. Please check that "\Device\NPF_{9E2076EE-E241-43AB-AC4B-8698D1A876F8}" is the proper interface. From the Device Manager you can select View->Show hidden devices, then open Non-Plug and Play Drivers and right click on NetGroup Packet Filter Driver. (3) I set the channel to monitor. It is not, but the difference is not easy to spot. answered Oct 12 '0. Restrict Wireshark delivery with default-filter. File. (5) I select promiscuous mode. If you only want to change one flag, you can use SIOCGIFFLAGS (G for Get) to get the old flags, then edit the one flag you want and set them. 0. But again: The most common use cases for Wireshark - that is: when you. promiscousmode. Help can be found at:The latest Wireshark has already integrated the support for Npcap's “ Monitor Mode ” capture. Click on Manage Interfaces. Thanks for the resources. Please turn off promiscuous mode for this device. Use the '-p' option to disable promiscuous mode. The capture session could not be initiated (failed to set hardware filter to promiscuous mode) Try using the Capture -> Options menu item, selecting the interface on which you want to capture, turn off promiscuous mode, and start capturing. button. 0. By default, Wireshark captures on-device data only, but it can capture almost all the data on its LAN if run in promiscuous mode. My TCP connections are reset by Scapy or by my kernel. I use a Realtek RTL8187 USB adapter and it seems not to be recognized by Wireshark. 1 Answer. (31)) please turn of promiscuous mode on your device. Complete the following set of procedures: xe vif-unplug uuid=<uuid_of_vif>xe vif-plug uuid=<uuid_of_vif>. Wireshark Promiscuous. (failed to set hardware filter to promiscuous mode) 0. I've tried each of the following, same results: Turning off the 'Capture packets in promiscuous mode' setting, in Wireshark Edit > Preferences > Capture. Promiscuous Mode is a setting in TwinCAT RT Ethernet adapters. If any name lookups from the bogus hosts are seen, a sniffer might be in action on the host. Please check that "DeviceNPF_{4245ACD7-1B29-404E-A3D5. 0rc1 Message is: The capture session could not be initiated on capture device "DeviceNPF_{8B94FF32-335D-443C-8A80-F51BDC825F9F}" (failed to set hardware filter to promiscuous mode: Ein an das System angeschlossenes Gerät funktioniert nicht. Select remote Interfaces tab. Open the Device Manager and expand the Network adapters list. I never had an issue with 3. sudo airmon-ng start wlan1. 6. When the Wi-Fi is in monitor mode, you won’t be connected to the Internet. Ping 8. Ko zaženem capture mi javi sledečo napako: ¨/Device/NPF_(9CE29A9A-1290-4C04-A76B-7A10A76332F5)¨ (failed to set hardware filter to promiscuous mode: A device attached to the system is not functioning. 10 is enp1s0 -- with which 192. There are two main types of filters: Capture filter and Display filter. The answer suggests to turn off the promiscuous mode checkbox for the interface or upgrade the Npcap driver. The capture session could not be initiated (failed to set hardware filter to promiscuous mode). Connect to this wifi point using your iPhone. My computer has two interfaces, ethernet (eth0) and wifi (wlp1s0), which are both connected. I closed my Wireshark before starting the service and relaunched it again, I was able to see my Wi-Fi and other interfaces where I can capture the traffic. Follow asked Mar 29 at 11:18. please turn off promiscuous mode for the device. Without promiscuous mode enabled, the vSwitch/port group will only forward traffic to VMs (MAC addresses) which are directly connected to the port groups, it won't learn MAC addresses which - in your case - are on the other side of the bridge. Rebooting PC. 2. If you’re using the Wireshark packet sniffer and have it set to “promiscuous mode” in the Capture Options dialog box, you might reasonably think that you’re going to be seeing all the. Sometimes there’s a setting in the driver properties page in Device. 프로미스쿠스 모드는 일반적으로 HUB같은 스위치에서 TCP/IP 프로토콜에서 목적지를 찾기위해 모든장비에 브로드캐스트를 하게되면, 해당스위치에 연결된 모든 NIC (network interface card)는 자기에게 맞는. By the way, because the capture gets aborted at the very beggining, a second message windows appears (along with the one that contains the original message reported in this mails); ". i got this error: The capture session could not be initiated (failed to set hardware filter to promiscuous mode). This will allow you to see all the traffic that is coming into the network interface card. You cannot use Wireshark to set a WiFi adapter in promiscuous mode. It is sometimes given to a network snoop server that captures and saves all packets for analysis, for example, to monitor network usage. However, the software has a lot to recommend it and you can get it on a 5-day free trial to test whether it will replace. This means that your Wi-Fi supports monitor mode. failed to set hardware filter to promiscuous mode #120. But in your case the capture setup is problematic since in a switched environment you'll only receive frames for your MAC address (plus broadcasts/multicasts). Running Wireshark with admin privileges lets me turn on monitor mode. 0. Does Promiscuous mode add any value in switch environment ? Only if the switch supports what some switch vendors call "mirror ports" or "SPAN ports", meaning that you can configure them to attempt to send a copy of all packets going through the switch to that port. Share. . Wireshark has filters that help you narrow down the type of data you are looking for. From the Promiscuous Mode dropdown menu, click Accept. message wifi for errorHello, I am trying to do a Wireshark capture when my laptop is connected to my Plugable UD-3900. Please check that "DeviceNPF_{2879FC56-FA35-48DF-A0E7-6A2532417BFF}" is the proper interface. To check traffic, the user will have to switch to Monitor Mode. you should now be able to run it without root and you will be able to capture. "This would have the effect of making the vSwitch/PortGroup act like a hub rather than a switch (i. sudo iwconfig wlan2 mode monitor (To get into the monitor mode. Hi all, Here is what I want to do, and the solutions I considered. One Answer: 1. wireshark. Second way is by doing: ifconfig wlan0 down. [Picture - not enough points to upload] I have a new laptop, installed WS, and am seeing that HTTP protocol does not appear in the window while refreshing a browser or sending requests. views 2. or, to be more specific: when a network card is in promiscuous mode it accepts all packets, even if the. Please check that "DeviceNPF_{FF58589B-5BF6-4A78-988F-87B508471370}" is the proper interface. Follow these steps to read SSL and TLS packets in Wireshark: Open Wireshark and choose what you’d like to capture in the “Capture” menu. Once the network interface is selected, you simply click the Start button to begin your capture. This is most noticeable on wired networks that use. 192. wireshark. org. With enabling promiscuous mode, all traffic is sent to each VM on the vSwitch/port group. Every time. 3. To make sure, I did check the status of "Promiscuous mode" again by using mentioned command but still all "false". Promiscuous Mode Detection 2019 ינוי ,107 ןוילג הנשנ )תיטמוטוא ץורפ בצמל סינכמש רחא Sniffer וא Wireshark ךרד םידבוע אל םתא םא( ןיפולחל וא תינדי תשרה סיטרכ תא Interface ל ףסוותה )Promiscuous( P לגדהש תוארל ןתינLaunch Wireshark once it is downloaded and installed. When you select Options… (or use the corresponding item in the main toolbar), Wireshark pops up the “Capture Options” dialog box as shown in Figure 4. (failed to set hardware filter to promiscuous mode: A device attached to the system is not functioning. The error: The capture session could not be initiated on capture device "DeviceNPF_{C549FC84-7A35-441B-82F6-4D42FC9E3EFB}" (Failed to set hradware filtres to promiscuos mode: Uno de los dispositivos conectados al sistema no funciona. Please check that "DeviceNPF_{62909DBD-56C7-48BB-B75B-EC68FF237032}" is the proper interface. Omnipeek from LiveAction isn’t free to use like Wireshark. For example, to configure eth0: $ sudo ip link set eth0 promisc on. One Answer: 0. If the adapter was not already in promiscuous mode, then Wireshark will. add a. In addition, promiscuous mode won't show you third-party traffic, so. MonitorModeEnabled - 1 MonitorMode - 1 *PriorityVLANTag - 0 SkDisableVlanStrip - 1. 168. You could do the poor man's MSMA/WS by using PS and Netsh as well as use / tweak the below resources for your use case. I have turned on promiscuous mode using sudo ifconfig eth0 promisc. Wireshark automatically puts the card into promiscuous mode. Promiscuous mode - must be switched on (this may not work with some WLAN cards on Win32!) Step 5: Capture traffic using a remote machine. No packets captured! As no data was captured, closing the temporary capture file! Help about capturing can be found at:Please post any new questions and answers at ask. Sure, tell us where your computer is, and let us select Capture > Options and click the "Promisc" checkbox for that interface; that wil turn off promiscuous mode. 6. From: Ing. single disk to windows 7 and windows xp is the way the card is atheros ar5007eg on Windows 7 without a problem and the promiscuous mode for xp failed to set hardware filter to promiscuous mode, why is that?. Unable to find traffic for specific device w/ Wireshark (over Wi-Fi) 2. 71 and tried Wireshark 3. Along with Rob Jones' suggestion, try a tool like Wireshark to make sure that you're receiving the packets that you expect at the interface. , a long time ago), a second mechanism was added; that mechanism doesIt also says "Promiscuous mode is, in theory, possible on many 802. npcap does, but it still depends on the NIC driver to implement it. sudo chmod +x /usr/bin/dumpcap. See the screenshot of the capture I have attached. To turn on promiscuous mode, click on the CAPTURE OPTIONS dialog box and select it from the options. 0. Broadband -- Asus router -- PC : succes. The capture session cocould not be initiated (failed to set hardware filter to promiscuous mode) always appears ). 1. Chuckc ( Sep 8 '3 )File. It lets you capture packet data from a live network and write the packets to a file. 1 GTK Crash on long run. Next to Promiscuous mode, select Enabled, and then click Save. My TCP connections are reset by Scapy or by my kernel. On UN*Xes, the OS provides a packet capture mechanism, and libpcap uses that. ip link show eth0 shows PROMISC. In the driver properties you can set the startup type as well as start and stop the driver manually. #120. Note that, unless your network is an "open" network with no password (which would mean that other people could see your. If you're trying to capture network traffic that's not being sent to or from the machine running Wireshark or TShark, i. Follow answered Feb 27. 解決方法：I'm able to capture packets using pcap in lap1. Wireshark and wifi monitor mode failing. How to activate promiscous mode. 7, 3. But in Wi-Fi, you're still limited to receiving only same-network data. The “Capture Options” Dialog Box. hey i have Tp-Link Wireless Usb And I Try To Start caputre with wireshark i have this problem. To check if promiscuous mode is enabled click Edit > Preferences, then go to Capture. 0. tcpdump -nni en0 -p. The capture session could not be initiated (failed to set hardware filter to promiscuous mode). First, note that promisc mode and monitor mode are different things in Wi-Fi: "Promiscuous" mode disables filtering of L2 frames with a different destination MAC. In this example we see will assume the NIC id is 1. 0008) and add a new string value. (failed to set hardware filter to promiscuous mode) 0. Check “enp0s3” interface and uncheck all other interfaces, then press ‘OK’. I'm working from the MINT machine (13) and have successfully configured wireshark ( I think ) such that I should be able to successfully capture all the traffic on my network. The result would be that I could have Zeek or TCPDump pick up all traffic that passes across that. CAP_NET_ADMIN allows us to set an interface to promiscuous mode, and CAP_NET_RAW permits raw access to an interface for capturing directly off the wire. However when I restart the router. "The capture session could not be initiated (failed to set hardware filter to promiscuous mode). ps1. See the Wireshark Wiki's CaptureSetup/WLAN page for information on this. 0. sudo airmon-ng start wlan0. The virtual switch acts as a normal switch in which each port is its own collision domain. As long as that is checked, which is Wireshark's default, Wireshark will put the adapter into promiscuous mode for you when you start capturing. [Capture Options]をクリック(③)し、"Capture"欄でNICを選択した上で "Use promiscuos mode on all interfaces"のチェックボックスを外します。 これでキャプチャが開始されました。 Yes, that's driver-dependent - some drivers explicitly reject attempts to set promiscuous mode, others just go into a mode, or put the adapter into a mode, where nothing is captured. Ignore my last comment. To keep you both informed, I got to the root of the issue. Help can be found at:Wireshark 2. It prompts to turn off promiscuous mode for this device. Explanation. Check this page for a list of monitor mode capable wifi adapters: In my experience a lot of cards supports monitor mode, so there is a good chance that your current one does. Please check to make sure you have sufficient permissions, and that you have the proper interface or pipe specified. Wireshark can also monitor the unicast traffic which is not sent to the network's MAC address interface. Open Source Tools. Now, capture on mon0 with tcpdump and/or dumpcap. It is required for debugging purposes with the Wireshark tool. Yes, I tried this, but sth is wrong. I'm working from the MINT machine (13) and have successfully configured wireshark ( I think ) such that I should be able to successfully capture all the traffic on my network. " This means that when capturing packets in Wireshark, the program will automatically scroll to show the most recent packet that has been captured. I've created a rule to allow ALL UDP messages through the firewall. Make sure you've finished step 4 successfully! In this step: Don't use your local machine to capture traffic as in the previous steps but use a remote machine to do so. Capture Interfaces" window. These drivers. I have a board (with FPGA) connecting to a windows 10 host through a 10G NIC. The checkbox for Promiscuous Mode (use with Wireshark only) must be. Step 3: Select the new interface in Wireshark (mine was wlan0mon) HTH. Imam eno težavo z Wireshark 4. and save Step 3. If the mirror session is correct, Wireshark will capture anything that the network card receives unless:Steps: (1) I kill all processes that would disrupt Monitor mode. I can’t ping 127. Restrict Wireshark delivery with default-filter. When tools such as Wireshark are installed on the capture device, they also install a libpcap or WinPcap driver on the device. 71 and tried Wireshark 3. 4. Latest Wireshark on Mac OS X 10. It's not. Please check that "DeviceNPF_{62909DBD-56C7-48BB-B75B-EC68FF237032}" is the proper interface. I upgraded npcap from 1. ) sudo iw dev wlan2 set channel 40 (Setting the channel to 5200) Running wireshark (2. I then installed the Atheros drivers, uninstalled and reinstalled Wireshark / WinPCap but still no luck. ip link show eth0 shows PROMISC. 4. 2, sniffing with promiscuous mode turned on Client B at 10. See Also. Wireshark will try to put the interface on which it’s capturing into promiscuous mode unless the "Capture packets in promiscuous mode" option is turned off in the "Capture Options" dialog box, and TShark will try to put the interface on which it’s capturing into promiscuous mode unless the -p option was specified. Turn On Promiscuous Mode:ifconfig eth0 promiscifconfig eth0 -promisc. This prompts a button fro the NDIS driver installation. You can use the following function (which is found in net/core/dev. 107. It's probably because either the driver on the Windows XP system doesn't. A user reports that Wireshark can't capture any more in promiscuous mode after upgrading from Windows 10 to Windows 11. Right-Click on Enable-PromiscuousMode. Promiscuous mode (enabled by default) allows you to see all other packets on the network instead of only packets addressed to your network adapter. 3. 0. Promiscuous mode. Now, hopefully everything works when you re-install Wireshark. Thanks in advance Thanks, Rodrigo0103, I was having the same issue and after starting the service "net start npcap", I was able to see other interfaces and my Wi-Fi in "Wireshark . . 11 traffic in “ Monitor Mode ”, you need to switch on the monitor mode inside the Wireshark UI instead of using the section called “WlanHelper”. This is were it gets weird. Some have got npcap to start correctly by running the following command from an elevated prompt sc start npcap and rebooting. If the field is left blank, the capture data will be stored in a temporary file, see Section 4. I was able to find the monitor mode option by clicking the hamburger menu item on the top right -> Change right underneath -> and turn on the monitor mode switch. Sort of. grahamb.