Seem to share same symptom with bug 1850089, but bug 1850089 is caused by a platform customized iwlwifi dkms.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1892074 Title: Intel Killer AX1650i [8086:34f0] Subsystem [1a56:1651] WiFi keeps disconnecting Status in linux package in Ubuntu: Confirmed Bug description: 1) $ lsb_release -rd Description: Ubuntu 20.04.1 LTS Release: 20.04 2) $ apt-cache policy linux-image-5.4.0-42-generic linux-image-5.4.0-42-generic: Installed: 5.4.0-42.46 Candidate: 5.4.0-42.46 Version table: *** 5.4.0-42.46 500 500 http://at.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages 100 /var/lib/dpkg/status 3) No WiFi disconnects 4) WiFi disconnects (other clients don't have any issues) The WiFi AP is a Mikrotik cAP AC running RouterOS v6.47.1, 2.4/5GHz dual-band (4 channels), WPA2-PSK. I see reglular WiFi disconnects since a few days now, possibly related to a kernel and/or firmware upgrade. https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1889182 looks similar, but I have different Intel hardware: 00:14.3 Network controller: Intel Corporation Killer Wi-Fi 6 AX1650i 160MHz Wireless Network Adapter (201NGW) (rev 30) [87471.950797] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting 0x0. [87471.950881] iwlwifi 0000:00:14.3: Start IWL Error Log Dump: [87471.950884] iwlwifi 0000:00:14.3: Status: 0x00000040, count: 6 [87471.950887] iwlwifi 0000:00:14.3: Loaded firmware version: 48.4fa0041f.0 [87471.950889] iwlwifi 0000:00:14.3: 0x00000071 | NMI_INTERRUPT_UMAC_FATAL [87471.950891] iwlwifi 0000:00:14.3: 0x0000A200 | trm_hw_status0 [87471.950893] iwlwifi 0000:00:14.3: 0x00000000 | trm_hw_status1 [87471.950895] iwlwifi 0000:00:14.3: 0x004CA468 | branchlink2 [87471.950897] iwlwifi 0000:00:14.3: 0x004B5438 | interruptlink1 [87471.950898] iwlwifi 0000:00:14.3: 0x004B5438 | interruptlink2 [87471.950900] iwlwifi 0000:00:14.3: 0x004C54E6 | data1 [87471.950902] iwlwifi 0000:00:14.3: 0x00001000 | data2 [87471.950903] iwlwifi 0000:00:14.3: 0xF0000008 | data3 [87471.950905] iwlwifi 0000:00:14.3: 0x8580BFB0 | beacon time [87471.950907] iwlwifi 0000:00:14.3: 0xF6D4B028 | tsf low [87471.950909] iwlwifi 0000:00:14.3: 0x00000013 | tsf hi [87471.950910] iwlwifi 0000:00:14.3: 0x00000000 | time gp1 [87471.950912] iwlwifi 0000:00:14.3: 0x03470D2D | time gp2 [87471.950914] iwlwifi 0000:00:14.3: 0x00000001 | uCode revision type [87471.950915] iwlwifi 0000:00:14.3: 0x00000030 | uCode version major [87471.950917] iwlwifi 0000:00:14.3: 0x4FA0041F | uCode version minor [87471.950919] iwlwifi 0000:00:14.3: 0x00000332 | hw version [87471.950921] iwlwifi 0000:00:14.3: 0x00C89008 | board version [87471.950922] iwlwifi 0000:00:14.3: 0x8028FD19 | hcmd [87471.950924] iwlwifi 0000:00:14.3: 0x24020000 | isr0 [87471.950926] iwlwifi 0000:00:14.3: 0x00000000 | isr1 [87471.950927] iwlwifi 0000:00:14.3: 0x18F84802 | isr2 [87471.950929] iwlwifi 0000:00:14.3: 0x00C1FFCC | isr3 [87471.950931] iwlwifi 0000:00:14.3: 0x00000000 | isr4 [87471.950932] iwlwifi 0000:00:14.3: 0x009D01D1 | last cmd Id [87471.950934] iwlwifi 0000:00:14.3: 0x004C54E6 | wait_event [87471.950936] iwlwifi 0000:00:14.3: 0x000000D4 | l2p_control [87471.950938] iwlwifi 0000:00:14.3: 0x00018014 | l2p_duration [87471.950939] iwlwifi 0000:00:14.3: 0x00000007 | l2p_mhvalid [87471.950941] iwlwifi 0000:00:14.3: 0x00000000 | l2p_addr_match [87471.950943] iwlwifi 0000:00:14.3: 0x00000008 | lmpm_pmg_sel [87471.950944] iwlwifi 0000:00:14.3: 0x00000000 | timestamp [87471.950946] iwlwifi 0000:00:14.3: 0x0000988C | flow_handler [87471.950984] iwlwifi 0000:00:14.3: Start IWL Error Log Dump: [87471.950986] iwlwifi 0000:00:14.3: Status: 0x00000040, count: 7 [87471.950988] iwlwifi 0000:00:14.3: 0x200014FD | ADVANCED_SYSASSERT [87471.950989] iwlwifi 0000:00:14.3: 0x00000000 | umac branchlink1 [87471.950991] iwlwifi 0000:00:14.3: 0xC008D49C | umac branchlink2 [87471.950993] iwlwifi 0000:00:14.3: 0xC00871A4 | umac interruptlink1 [87471.950995] iwlwifi 0000:00:14.3: 0x00000000 | umac interruptlink2 [87471.950996] iwlwifi 0000:00:14.3: 0x00000082 | umac data1 [87471.950998] iwlwifi 0000:00:14.3: 0xDEADBEEF | umac data2 [87471.951000] iwlwifi 0000:00:14.3: 0xDEADBEEF | umac data3 [87471.951001] iwlwifi 0000:00:14.3: 0x00000030 | umac major [87471.951003] iwlwifi 0000:00:14.3: 0x4FA0041F | umac minor [87471.951005] iwlwifi 0000:00:14.3: 0x03470D20 | frame pointer [87471.951006] iwlwifi 0000:00:14.3: 0xC0885EA0 | stack pointer [87471.951008] iwlwifi 0000:00:14.3: 0x00AA0108 | last host cmd [87471.951010] iwlwifi 0000:00:14.3: 0x00000000 | isr status reg [87471.951025] iwlwifi 0000:00:14.3: Fseq Registers: [87471.951044] iwlwifi 0000:00:14.3: 0xE0000101 | FSEQ_ERROR_CODE [87471.951049] iwlwifi 0000:00:14.3: 0x00290033 | FSEQ_TOP_INIT_VERSION [87471.951068] iwlwifi 0000:00:14.3: 0x80070043 | FSEQ_CNVIO_INIT_VERSION [87471.951090] iwlwifi 0000:00:14.3: 0x0000A481 | FSEQ_OTP_VERSION [87471.951110] iwlwifi 0000:00:14.3: 0x00000002 | FSEQ_TOP_CONTENT_VERSION [87471.951131] iwlwifi 0000:00:14.3: 0x4552414E | FSEQ_ALIVE_TOKEN [87471.951152] iwlwifi 0000:00:14.3: 0x02000300 | FSEQ_CNVI_ID [87471.951157] iwlwifi 0000:00:14.3: 0x01300504 | FSEQ_CNVR_ID [87471.951177] iwlwifi 0000:00:14.3: 0x02000300 | CNVI_AUX_MISC_CHIP [87471.951199] iwlwifi 0000:00:14.3: 0x01300504 | CNVR_AUX_MISC_CHIP [87471.951220] iwlwifi 0000:00:14.3: 0x05B0905B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM [87471.951242] iwlwifi 0000:00:14.3: 0x0000025B | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR [87471.951403] iwlwifi 0000:00:14.3: Collecting data: trigger 2 fired. [87471.951411] ieee80211 phy0: Hardware restart was requested [87471.951454] iwlwifi 0000:00:14.3: FW error in SYNC CMD PHY_CONTEXT_CMD [87471.951465] CPU: 6 PID: 981 Comm: wpa_supplicant Tainted: G U W 5.4.0-42-generic #46-Ubuntu [87471.951468] Hardware name: Dell Inc. XPS 13 7390 2-in-1/06CDVY, BIOS 1.0.9 08/02/2019 [87471.951471] Call Trace: [87471.951485] dump_stack+0x6d/0x9a [87471.951506] iwl_trans_pcie_gen2_send_hcmd+0x3de/0x3f0 [iwlwifi] [87471.951515] ? wait_woken+0x80/0x80 [87471.951531] iwl_trans_send_cmd+0x55/0xc0 [iwlwifi] [87471.951544] iwl_mvm_send_cmd+0x1f/0x40 [iwlmvm] [87471.951554] iwl_mvm_send_cmd_pdu+0x51/0x70 [iwlmvm] [87471.951563] iwl_mvm_phy_ctxt_apply.constprop.0+0x173/0x240 [iwlmvm] [87471.951572] iwl_mvm_phy_ctxt_changed+0x58/0xb0 [iwlmvm] [87471.951579] iwl_mvm_change_chanctx+0x10a/0x140 [iwlmvm] [87471.951613] ieee80211_recalc_chanctx_min_def+0x1ee/0x340 [mac80211] [87471.951643] ieee80211_assign_vif_chanctx+0x21c/0x420 [mac80211] [87471.951669] ieee80211_vif_use_channel+0x17b/0x290 [mac80211] [87471.951699] ieee80211_prep_channel+0x2be/0x500 [mac80211] [87471.951726] ieee80211_prep_connection+0x25f/0x430 [mac80211] [87471.951756] ieee80211_mgd_auth+0x19d/0x3d0 [mac80211] [87471.951786] ieee80211_auth+0x18/0x20 [mac80211] [87471.951813] cfg80211_mlme_auth+0x104/0x210 [cfg80211] [87471.951832] nl80211_authenticate+0x284/0x2e0 [cfg80211] [87471.951837] genl_family_rcv_msg+0x1b9/0x470 [87471.951840] ? __netlink_sendskb+0x42/0x50 [87471.951842] genl_rcv_msg+0x4c/0xa0 [87471.951845] ? _cond_resched+0x19/0x30 [87471.951847] ? genl_family_rcv_msg+0x470/0x470 [87471.951849] netlink_rcv_skb+0x50/0x120 [87471.951851] genl_rcv+0x29/0x40 [87471.951853] netlink_unicast+0x187/0x220 [87471.951855] netlink_sendmsg+0x222/0x3e0 [87471.951859] sock_sendmsg+0x65/0x70 [87471.951861] ____sys_sendmsg+0x212/0x280 [87471.951864] ___sys_sendmsg+0x88/0xd0 [87471.951867] ? ___sys_recvmsg+0x88/0xc0 [87471.951869] ? sock_ioctl+0x24f/0x3c0 [87471.951870] ? _cond_resched+0x19/0x30 [87471.951875] ? get_max_files+0x20/0x20 [87471.951880] ? __cgroup_bpf_run_filter_setsockopt+0xae/0x2c0 [87471.951882] ? _cond_resched+0x19/0x30 [87471.951887] ? aa_sk_perm+0x43/0x170 [87471.951891] __sys_sendmsg+0x5c/0xa0 [87471.951895] __x64_sys_sendmsg+0x1f/0x30 [87471.951900] do_syscall_64+0x57/0x190 [87471.951904] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [87471.951908] RIP: 0033:0x7f420cf665b7 [87471.951913] Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [87471.951916] RSP: 002b:00007ffd6b99de48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [87471.951920] RAX: ffffffffffffffda RBX: 000055a56d2505b0 RCX: 00007f420cf665b7 [87471.951921] RDX: 0000000000000000 RSI: 00007ffd6b99de80 RDI: 0000000000000006 [87471.951923] RBP: 000055a56d2b5540 R08: 0000000000000004 R09: 00007f420d02eb80 [87471.951925] R10: 00007ffd6b99df54 R11: 0000000000000246 R12: 000055a56d2504c0 [87471.951926] R13: 00007ffd6b99de80 R14: 00007ffd6b99df54 R15: 000055a56d25af80 [87471.951934] iwlwifi 0000:00:14.3: PHY ctxt cmd error. ret=-5 [87471.951951] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [87471.951958] iwlwifi 0000:00:14.3: failed to update MAC 24:ee:9a:54:c3:3d [87472.358947] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [87472.358949] iwlwifi 0000:00:14.3: failed to update MAC 24:ee:9a:54:c3:3d [87472.358978] wlp0s20f3: failed to insert STA entry for the AP (error -5) [87472.358980] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [87472.358982] iwlwifi 0000:00:14.3: failed to update MAC 24:ee:9a:54:c3:3d [87472.358985] iwlwifi 0000:00:14.3: Failed to send binding (action:3): -5 [87472.358987] iwlwifi 0000:00:14.3: Failed to send MAC context (action:2): -5 [87472.358988] iwlwifi 0000:00:14.3: failed to update MAC 24:ee:9a:54:c3:3d [87472.358991] iwlwifi 0000:00:14.3: PHY ctxt cmd error. ret=-5 [87472.380868] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [87472.525632] iwlwifi 0000:00:14.3: FW already configured (0) - re-configuring [87472.624978] wlp0s20f3: authenticate with c4:ad:34:f7:41:8b [87472.627380] wlp0s20f3: send auth to c4:ad:34:f7:41:8b (try 1/3) [87472.652253] wlp0s20f3: authenticated [87472.655288] wlp0s20f3: associate with c4:ad:34:f7:41:8b (try 1/3) [87472.657733] wlp0s20f3: RX AssocResp from c4:ad:34:f7:41:8b (capab=0x431 status=0 aid=1) [87472.660341] wlp0s20f3: associated ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-42-generic 5.4.0-42.46 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: alex 1701 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue Aug 18 18:57:12 2020 InstallationDate: Installed on 2019-12-02 (260 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Dell Inc. XPS 13 7390 2-in-1 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-42-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash i915.enable_psr=0 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-42-generic N/A linux-backports-modules-5.4.0-42-generic N/A linux-firmware 1.187.2 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-04-23 (116 days ago) dmi.bios.date: 08/02/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.0.9 dmi.board.name: 06CDVY dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 31 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.0.9:bd08/02/2019:svnDellInc.:pnXPS1373902-in-1:pvr:rvnDellInc.:rn06CDVY:rvrA00:cvnDellInc.:ct31:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 7390 2-in-1 dmi.product.sku: 08B0 dmi.sys.vendor: Dell Inc. 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