ubuntu 22.04 Intel AX210 can't capture the Wi-Fi pkts under monitor it seems there's a Wi-Fi crash

HKL · ‎10-17-2022

Hello,

I would like to use Intel AX210 to capture the Wi-Fi packets. But, the Wireshark always told me "No packets captured".

I'm pretty sure the Wi-Fi adapter is under monitor mode. I can use the same way on the other laptop to do the same thing.

Then, I accidentally saw the dmesg pop-up Wi-Fi crash messages after I enable the Wi-Fi adapter with monitor mode.

Is there a way to fix this issue? I never met the situation before. Thanks.

AndrewG_Intel · ‎10-18-2022

Hello @HKL

Thank you for posting on the Intel® communities.

Please allow us to look into this and we will be posting back in the thread as soon as more details are available or in case additional information is required from your environment.

Best regards,

Andrew G.

Intel Customer Support Technician

AndrewG_Intel · ‎10-18-2022

Hello HKL

Could you please provide us with the output of the command # iw list?

We will be looking forward to hearing back from you.

Best regards,

Andrew G.

Intel Customer Support Technician

HKL · ‎10-18-2022

Hello Andrew G.,

Sure. Please refer to the below.

iw list_1.png iw list_2.png iw list_3.png iw list_4.png iw list_5.png iw list_6.png iw list_7.png iw list_8.png iw list_9.png iw list_10.png iw list_11.png iw list_12.png iw list_13.png

AndrewG_Intel · ‎10-20-2022

Hello HKL

Thank you for the screenshots.

Please allow us to review the information and we will be posting back in the thread as soon as possible.

Best regards,

Andrew G.

Intel Customer Support Technician

AndrewG_Intel · ‎10-26-2022

Hello HKL

After reviewing the information, the screenshots indicate the system is using an older kernel 5.15 with AX210 FW 66. Therefore, we suggest trying the latest (and stable) kernel 6.0 that comes with the newer AX210 FW 71. We recommend contacting your Linux distro support team/forum for assistance to update the kernel. For instance, you may refer to the UBUNTU* forums for more help.

Also, we would like to inform you that on Linux, Intel® wireless products are fully supported in station mode. As for monitor mode, the features and its support are limited, so it's expected that 802.11ac (uses OFDM) may function in monitor mode but 802.11ax (uses OFDMA) may not.

If you have any other inquiries, please don't hesitate to contact us back.

Best regards,

Andrew G.

Intel Customer Support Technician

HKL · ‎10-26-2022

Hello AndrewG_Intel,

After your suggestion, I try to upgrade the Linux kernel and Wi-Fi adapter FW on the same laptop.
Finally, I choose to clean install Ubuntu 22.10 (Linux kernel: 5.19, Wi-Fi adapter: 71).
The issue still can be reproduced.

Then, I decided to do the same thing on a PC.
I found the Wi-Fi crash messages still there, but monitor mode works properly.
Maybe the laptop has some problems related to HW.

Sorry for the misunderstanding of the call trace (WiFi crash).
It seems might be a normal behavior with monitor mode. (I'm not sure. I guess.)

Anyway, thank you for your help.

AndrewG_Intel · ‎10-27-2022

Hello HKL

Thank you for your response and for the feedback.

Just in case, we will check the information to see if this could be related to some problems related to HW as you pointed out. We will keep you posted.

Best regards,

Andrew G.

Intel Customer Support Technician

AndrewG_Intel · ‎10-31-2022

Hello HKL

In this scenario, we recommend checking this further with your Original Equipment Manufacturer (OEM) HP for further assistance including reviewing if this could be related to a hardware problem on the computer.

Best regards,

Andrew G.

Intel Customer Support Technician