Frequent Scan fails during IBSS mode on Ubuntu 20.04 and Wi-Fi 6 AX200

[james41]

Hello, 

We have an NVIDIA Orin NX that is running Ubuntu 20.04 and we are using IBSS mode as our local network setup. The commands we used to switch to IBSS mode are:

sudo systemctl stop NetworkManager || true
sudo systemctl stop wpa_supplicant || true
sudo ip link set "$IFACE" down
sudo iw "$IFACE" set type ibss
sudo ip link set "$IFACE" up
sudo iw "$IFACE" ibss join "$SSID" "$FREQ"
sudo ip addr add "$IPADDR" dev "$IFACE" || true

We noticed that it would take up to ~10 minutes for it to join the IBSS network, we checked the kernel messages using:

dmesg | grep iwlwifi

and it yields the following:

[  641.979555] iwlwifi 0001:01:00.0: Error sending SCAN_REQ_UMAC: time out after 2000ms.
[  641.979811] iwlwifi 0001:01:00.0: Current CMD queue read_ptr 47 write_ptr 48
[  642.228363] iwlwifi 0001:01:00.0: Start IWL Error Log Dump:
[  642.228538] iwlwifi 0001:01:00.0: Status: 0x00000040, count: 6
[  642.228708] iwlwifi 0001:01:00.0: Loaded firmware version: 59.601f3a66.0 cc-a0-59.ucode
[  642.228953] iwlwifi 0001:01:00.0: 0x00000084 | NMI_INTERRUPT_UNKNOWN       
[  642.229152] iwlwifi 0001:01:00.0: 0x008022F3 | trm_hw_status0
[  642.229324] iwlwifi 0001:01:00.0: 0x00000000 | trm_hw_status1
[  642.229493] iwlwifi 0001:01:00.0: 0x004FAA36 | branchlink2
[  642.229641] iwlwifi 0001:01:00.0: 0x00007828 | interruptlink1
[  642.229808] iwlwifi 0001:01:00.0: 0x00007828 | interruptlink2
[  642.229979] iwlwifi 0001:01:00.0: 0x000146A4 | data1
[  642.230116] iwlwifi 0001:01:00.0: 0xFF000000 | data2
[  642.230252] iwlwifi 0001:01:00.0: 0x00000000 | data3
[  642.230379] iwlwifi 0001:01:00.0: 0x968025A7 | beacon time
[  642.230920] iwlwifi 0001:01:00.0: 0x0F9B2ADF | tsf low
[  642.231698] iwlwifi 0001:01:00.0: 0x00000000 | tsf hi
[  642.232471] iwlwifi 0001:01:00.0: 0x00000000 | time gp1
[  642.233248] iwlwifi 0001:01:00.0: 0x09ED5945 | time gp2
[  642.234024] iwlwifi 0001:01:00.0: 0x00000001 | uCode revision type
[  642.238974] iwlwifi 0001:01:00.0: 0x0000003B | uCode version major
[  642.245277] iwlwifi 0001:01:00.0: 0x601F3A66 | uCode version minor
[  642.251574] iwlwifi 0001:01:00.0: 0x00000340 | hw version
[  642.257087] iwlwifi 0001:01:00.0: 0x00489000 | board version
[  642.262863] iwlwifi 0001:01:00.0: 0x0100001C | hcmd
[  642.267850] iwlwifi 0001:01:00.0: 0x00021000 | isr0
[  642.272837] iwlwifi 0001:01:00.0: 0x00048000 | isr1
[  642.277826] iwlwifi 0001:01:00.0: 0x08F00002 | isr2
[  642.282814] iwlwifi 0001:01:00.0: 0x00C3005C | isr3
[  642.287713] iwlwifi 0001:01:00.0: 0x00000000 | isr4
[  642.292525] iwlwifi 0001:01:00.0: 0x0300001C | last cmd Id
[  642.298038] iwlwifi 0001:01:00.0: 0x000146A4 | wait_event
[  642.303549] iwlwifi 0001:01:00.0: 0x00000000 | l2p_control
[  642.308976] iwlwifi 0001:01:00.0: 0x00001C00 | l2p_duration
[  642.314663] iwlwifi 0001:01:00.0: 0x00000000 | l2p_mhvalid
[  642.320086] iwlwifi 0001:01:00.0: 0x00000000 | l2p_addr_match
[  642.325775] iwlwifi 0001:01:00.0: 0x00000009 | lmpm_pmg_sel
[  642.331465] iwlwifi 0001:01:00.0: 0x00000000 | timestamp
[  642.336887] iwlwifi 0001:01:00.0: 0x00001068 | flow_handler
[  642.342623] iwlwifi 0001:01:00.0: Start IWL Error Log Dump:
[  642.348266] iwlwifi 0001:01:00.0: Status: 0x00000040, count: 7
[  642.354126] iwlwifi 0001:01:00.0: 0x20000074 | ADVANCED_SYSASSERT
[  642.360338] iwlwifi 0001:01:00.0: 0x00000000 | umac branchlink1
[  642.366374] iwlwifi 0001:01:00.0: 0x804568FC | umac branchlink2
[  642.372326] iwlwifi 0001:01:00.0: 0x804778B4 | umac interruptlink1
[  642.378626] iwlwifi 0001:01:00.0: 0x804778B4 | umac interruptlink2
[  642.384749] iwlwifi 0001:01:00.0: 0x03000000 | umac data1
[  642.390262] iwlwifi 0001:01:00.0: 0x804778B4 | umac data2
[  642.395775] iwlwifi 0001:01:00.0: 0x00000000 | umac data3
[  642.401112] iwlwifi 0001:01:00.0: 0x0000003B | umac major
[  642.406449] iwlwifi 0001:01:00.0: 0x601F3A66 | umac minor
[  642.411788] iwlwifi 0001:01:00.0: 0x09ED5942 | frame pointer
[  642.417386] iwlwifi 0001:01:00.0: 0xC0886274 | stack pointer
[  642.422987] iwlwifi 0001:01:00.0: 0x002E010D | last host cmd
[  642.428587] iwlwifi 0001:01:00.0: 0x00000000 | isr status reg
[  642.434283] iwlwifi 0001:01:00.0: Fseq Registers:
[  642.438923] iwlwifi 0001:01:00.0: 0x60000000 | FSEQ_ERROR_CODE
[  642.444867] iwlwifi 0001:01:00.0: 0x80290021 | FSEQ_TOP_INIT_VERSION
[  642.451346] iwlwifi 0001:01:00.0: 0x00050008 | FSEQ_CNVIO_INIT_VERSION
[  642.457815] iwlwifi 0001:01:00.0: 0x0000A503 | FSEQ_OTP_VERSION
[  642.463767] iwlwifi 0001:01:00.0: 0x80000003 | FSEQ_TOP_CONTENT_VERSION
[  642.470504] iwlwifi 0001:01:00.0: 0x4552414E | FSEQ_ALIVE_TOKEN
[  642.476454] iwlwifi 0001:01:00.0: 0x00100530 | FSEQ_CNVI_ID
[  642.482142] iwlwifi 0001:01:00.0: 0x00000532 | FSEQ_CNVR_ID
[  642.487830] iwlwifi 0001:01:00.0: 0x00100530 | CNVI_AUX_MISC_CHIP
[  642.494044] iwlwifi 0001:01:00.0: 0x00000532 | CNVR_AUX_MISC_CHIP
[  642.500254] iwlwifi 0001:01:00.0: 0x05B0905B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[  642.508131] iwlwifi 0001:01:00.0: 0x0000025B | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[  642.516363] ------------[ cut here ]------------
[  642.520969] WARNING: CPU: 3 PID: 1617 at drivers/net/wireless/intel/iwlwifi/mvm/scan.c:2645 iwl_mvm_report_scan_aborted+0x214/0x230 [iwlmvm]
[  642.534017] ---[ end trace d0e68eab75812b9e ]---
[  642.538417] iwlwifi 0001:01:00.0: WRT: Collecting data: ini trigger 4 fired.
[  642.545247] iwlwifi 0001:01:00.0: Scan failed! ret -110
[  642.550937] WARNING: CPU: 4 PID: 1617 at net/mac80211/scan.c:434 __ieee80211_scan_completed+0x314/0x4c0 [mac80211]
[  642.560657] ---[ end trace d0e68eab75812b9f ]---

It seems that the AX200 card firmware froze during the network scan ? Is there a way to fix this issue?? Thanks!

[LohithG]

Hi James41,

Thank you for posting on the Intel Community Forum.

Before we proceed further, could you please confirm the exact wireless adapter configuration being used?

Specifically, please let us know:

1. Whether the adapter is the Intel Wi-Fi 6 (Gig+) Desktop Kit or a standalone/custom-integrated AX200 module
2. The full adapter part/model number
3. How the adapter is connected to the NVIDIA Orin NX platform (e.g., M.2 slot, carrier board integration, PCIe adapter)

This information will help us determine the appropriate support path for your configuration.

[LohithG]

Hi James41,

Just checking in on the information we requested earlier. When you have a chance, could you please let us know:

• Whether the adapter is the Intel Wi-Fi 6 (Gig+) Desktop Kit or a standalone/custom AX200 module
• The full adapter part/model number
• How it is connected to the NVIDIA Orin NX platform (M.2 slot, carrier board integration, PCIe adapter, etc.)

This will help us better understand the setup and guide you in the right direction.

Looking forward to your update.

Best Regards,

LohithG

Intel Customer Support Technician

[LohithG]

Hi James41,

I hope you’ve been doing well.

I wanted to follow up regarding the details we requested earlier about the wireless adapter configuration being used with the NVIDIA Orin NX platform.

When you have a chance, could you please confirm the following:

• Whether the adapter is the Intel Wi-Fi 6 (Gig+) Desktop Kit or a standalone/custom AX200 module
• The full adapter part/model number
• How the adapter is connected to the NVIDIA Orin NX platform (M.2 slot, carrier board integration, PCIe adapter, etc.)

This information will help us better understand the setup and guide you accordingly.

Since we have not received any further updates from you, we will go ahead and close this thread. Please note that this means the thread will no longer be officially monitored by our team.

No worries at all though if you have any additional questions, concerns, or would like to continue the discussion in the future, you are always welcome to create a new thread and reach back out to us anytime. We’ll be more than happy to assist you further.

Thank you once again for your time, patience, and participation in the Intel Community. We truly appreciate it.

Best Regards,

LohithG

Intel Customer Support Technician