Hi, I have an Ubuntu 20.04 LTS machine for a while, and suddenly one day my wifi stopped working. Here are some photos from the settings and GNOME network display:
I've looked everywhere, tried a lot of solutions but it didn't work. I've also followed some of the post related to this issue in the past in this community. And I think some of the output here would be useful. I have no clues whatsoever on how to fix this, any help is really appreciated:
Here is the kernel version:
mnguyen@mnguyen-xps-13-7390:~$ uname -r
5.15.0-41-generic
Here is the nmcli messages, showing I'm missing some plugins, but I don't know which one and also my wifi is 'unmanaged'
mnguyen@mnguyen-xps-13-7390:~$ nmcli
wlp2s0: unmanaged
"Intel 6 AX200"
wifi (iwlwifi), plugin missing, hw, mtu 1500
Here is the dmesg
mnguyen@mnguyen-xps-13-7390:~$ sudo dmesg | grep wifi
[ 3.349201] Loading modules backported from iwlwifi
[ 3.349203] iwlwifi-stack-public:master:9904:0e80336f
[ 3.500939] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002)
[ 3.528268] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-73.ucode failed with error -2
[ 3.528302] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-72.ucode failed with error -2
[ 3.528326] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-71.ucode failed with error -2
[ 3.528448] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-70.ucode failed with error -2
[ 3.528575] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-69.ucode failed with error -2
[ 3.528592] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-68.ucode failed with error -2
[ 3.528605] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-67.ucode failed with error -2
[ 3.528714] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-66.ucode failed with error -2
[ 3.528730] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-65.ucode failed with error -2
[ 3.528749] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-cc-a0-64.ucode failed with error -2
[ 3.531360] iwlwifi 0000:02:00.0: api flags index 2 larger than supported by driver
[ 3.531378] iwlwifi 0000:02:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 89.3.35.37
[ 3.531806] iwlwifi 0000:02:00.0: loaded firmware version 63.c04f3485.0 cc-a0-63.ucode op_mode iwlmvm
[ 3.731597] iwlwifi 0000:02:00.0: Detected Killer(R) Wi-Fi 6 AX1650w 160MHz Wireless Network Adapter (200D2W), REV=0x340
[ 3.893236] iwlwifi 0000:02:00.0: Detected RF HR B3, rfid=0x10a100
[ 3.962435] WARNING: CPU: 5 PID: 580 at /home/mnguyen/backport-iwlwifi/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c:822 iwl_init_he_hw_capab+0x40c/0x420 [iwlwifi]
[ 3.962462] Modules linked in: soundwire_intel mei_hdcp soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core snd_soc_acpi_intel_match x86_pkg_temp_thermal intel_powerclamp snd_soc_acpi soundwire_bus coretemp snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine kvm_intel iwlmvm(OE+) kvm snd_hda_intel joydev snd_intel_dspcfg crct10dif_pclmul ghash_clmulni_intel snd_intel_sdw_acpi aesni_intel crypto_simd snd_hda_codec cryptd i915 snd_hda_core mac80211(OE) dell_laptop snd_hwdep dell_smm_hwmon snd_pcm snd_seq_midi snd_seq_midi_event dell_wmi rapl ledtrig_audio ttm libarc4 input_leds intel_cstate snd_rawmidi dell_smbios drm_kms_helper dcdbas iwlwifi(OE) cec dell_wmi_sysman(+) serio_raw wmi_bmof snd_seq intel_wmi_thunderbolt dell_wmi_descriptor firmware_attributes_class processor_thermal_device_pci_legacy rc_core processor_thermal_device i2c_algo_bit processor_thermal_rfim snd_seq_device
[ 3.962572] RIP: 0010:iwl_init_he_hw_capab+0x40c/0x420 [iwlwifi]
[ 3.962630] iwl_init_sbands+0x6ec/0x750 [iwlwifi]
[ 3.962652] iwl_get_nvm+0x2a8/0x370 [iwlwifi]
[ 3.962743] ? iwl_pcie_check_hw_rf_kill+0x46/0xd0 [iwlwifi]
[ 3.962769] ? iwl_trans_pcie_start_hw+0xaf/0x2f0 [iwlwifi]
[ 3.962838] _iwl_op_mode_start.isra.0+0x74/0xd0 [iwlwifi]
[ 3.962861] iwl_opmode_register+0x85/0xf0 [iwlwifi]
[ 4.028000] iwlwifi 0000:02:00.0 wlp2s0: renamed from wlan0
[ 5193.183940] snd_pcm_dmaengine kvm_intel iwlmvm(OE) kvm snd_hda_intel joydev snd_intel_dspcfg crct10dif_pclmul ghash_clmulni_intel snd_intel_sdw_acpi aesni_intel crypto_simd snd_hda_codec cryptd i915 snd_hda_core mac80211(OE) dell_laptop snd_hwdep dell_smm_hwmon snd_pcm snd_seq_midi snd_seq_midi_event dell_wmi rapl ledtrig_audio ttm libarc4 input_leds intel_cstate snd_rawmidi dell_smbios drm_kms_helper dcdbas iwlwifi(OE) cec dell_wmi_sysman serio_raw wmi_bmof snd_seq intel_wmi_thunderbolt dell_wmi_descriptor firmware_attributes_class processor_thermal_device_pci_legacy rc_core processor_thermal_device i2c_algo_bit processor_thermal_rfim snd_seq_device fb_sys_fops efi_pstore processor_thermal_mbox hid_multitouch cfg80211(OE) snd_timer ucsi_acpi processor_thermal_rapl syscopyarea snd compat(OE) mei_me typec_ucsi intel_rapl_common sysfillrect mei sysimgblt soundcore intel_pch_thermal intel_soc_dts_iosf typec mac_hid int3403_thermal int340x_thermal_zone intel_hid sparse_keymap
Here is the lshw -C network
mnguyen@mnguyen-xps-13-7390:~$ sudo lshw -C network
*-network
description: Ethernet interface
product: Wi-Fi 6 AX200
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlp2s0
version: 1a
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical
configuration: broadcast=yes driver=iwlwifi driverversion=5.15.0-41-generic firmware=63.c04f3485.0 cc-a0-63.ucode latency=0 link=no multicast=yes
resources: irq:18 memory:9e200000-9e203fff
*-network:0
description: Ethernet interface
physical id: 3
logical name: veth59107ed
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:1
description: Ethernet interface
physical id: 4
logical name: vethad6b0f1
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:2
description: Ethernet interface
physical id: 5
logical name: veth60fd51e
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:3
description: Ethernet interface
physical id: 6
logical name: veth8ca2171
size: 10Gbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=veth driverversion=1.0 duplex=full link=yes multicast=yes port=twisted pair speed=10Gbit/s
*-network:4
description: Ethernet interface
physical id: 7
bus info: usb@2:1.2.1
logical name: enxf8e43b7826a1
size: 1Gbit/s
capacity: 1Gbit/s
capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=ax88179_178a driverversion=5.15.0-41-generic duplex=full ip=10.0.0.222 link=yes multicast=yes port=MII speed=1Gbit/s
Here is the lspci info to get the hardware info:
mnguyen@mnguyen-xps-13-7390:~$ sudo lspci -knn | grep Net -A3; rfkill list
02:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723] (rev 1a)
Subsystem: Bigfoot Networks, Inc. Wi-Fi 6 AX200 [1a56:1653]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
03:00.0 PCI bridge [0604]: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] [8086:15d3] (rev 02)
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
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