I have the same symptoms on Ubuntu 22.04.1 on a 12th-gen Framework laptop with Intel Wi-Fi 6 AX210/AX211/AX411 160MHz (rev 1a) device. Every time wpa-supplicant chooses to associate with a different BSSID (of the same SSID), the interface ends up being given a new IP address by the DHCP server (usually the sequentially next address).
I don't have access to the DHCP server or its logs, but I tried the above suggested workaround of setting net.ipv4.icmp_echo_ignore_all=1 and this prevents the problem from occurring. So I expect the root cause is the same. (And as an aside, there is nothing in the client- side logs to indicate that ICMP pings could be in any way related; without this report it would have much more difficult to diagnose and work around the problem.) A different laptop running 18.04 on the same network is able to keep its IP address when roaming, so presumably this is due to a change in NetworkManager behaviour. The problem makes it difficult to work in an enterprise office environment (ie. moving around between desks and meeting rooms), because all TCP connections are lost when the IP address changes, which is especially impactful for ssh connections. -- 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/1981366 Title: Intel AX201 / Thinkpad X1 Carbon Gen 9 returns ping during WiFi roam Status in linux package in Ubuntu: Confirmed Status in network-manager package in Ubuntu: Confirmed Bug description: My Thinkpad X1 Carbon Gen 9 has started to return pings in the middle of WiFi roam events which is causing the IP address to change every time it roams on the WiFi network. This is a huge problem for me because I install WiFi networks for a living but in general it causes every TCP connection over IPv4 to die every time the laptop roams to a new wifi cell. 00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201 (rev 20) I tried kernel 5.15.0-40-generic and mainline kernel 5.17 and 5.18. Jul 11 20:11:15 littlebrat kernel: [620752.349053] wlp0s20f3: authenticate with 86:2a:a8:8b:05:cb Jul 11 20:11:15 littlebrat kernel: [620752.349074] wlp0s20f3: Invalid HE elem, Disable HE Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0110] device (wlp0s20f3): supplicant interface state: completed -> authenticating Jul 11 20:11:15 littlebrat kernel: [620752.354373] wlp0s20f3: send auth to 86:2a:a8:8b:05:cb (try 1/3) Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0111] device (p2p-dev-wlp0s20f3): supplicant management interface state: completed -> authenticating Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0111] device (wlp0s20f3): ip:dhcp4: restarting Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0112] dhcp4 (wlp0s20f3): canceled DHCP transaction Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0112] dhcp4 (wlp0s20f3): activation: beginning transaction (timeout in 45 seconds) Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0112] dhcp4 (wlp0s20f3): state changed no lease Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0113] dhcp4 (wlp0s20f3): activation: beginning transaction (timeout in 45 seconds) Jul 11 20:11:15 littlebrat wpa_supplicant[1550]: wlp0s20f3: Trying to associate with 86:2a:a8:8b:05:cb (SSID='YesComputerSolutions-Private' freq=5540 MHz) Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0463] device (wlp0s20f3): supplicant interface state: authenticating -> associating Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0464] device (p2p-dev-wlp0s20f3): supplicant management interface state: authenticating -> associating Jul 11 20:11:15 littlebrat kernel: [620752.390520] wlp0s20f3: authenticated Jul 11 20:11:15 littlebrat kernel: [620752.393074] wlp0s20f3: associate with 86:2a:a8:8b:05:cb (try 1/3) Jul 11 20:11:15 littlebrat kernel: [620752.397915] wlp0s20f3: RX ReassocResp from 86:2a:a8:8b:05:cb (capab=0x1511 status=0 aid=4) Jul 11 20:11:15 littlebrat wpa_supplicant[1550]: wlp0s20f3: Associated with 86:2a:a8:8b:05:cb Jul 11 20:11:15 littlebrat wpa_supplicant[1550]: wlp0s20f3: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0 Jul 11 20:11:15 littlebrat kernel: [620752.406395] wlp0s20f3: associated Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0779] device (wlp0s20f3): supplicant interface state: associating -> associated Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0779] device (p2p-dev-wlp0s20f3): supplicant management interface state: associating -> associated Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0799] device (wlp0s20f3): supplicant interface state: associated -> 4way_handshake Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0800] device (p2p-dev-wlp0s20f3): supplicant management interface state: associated -> 4way_handshake Jul 11 20:11:15 littlebrat wpa_supplicant[1550]: wlp0s20f3: WPA: Key negotiation completed with 86:2a:a8:8b:05:cb [PTK=CCMP GTK=CCMP] Jul 11 20:11:15 littlebrat wpa_supplicant[1550]: wlp0s20f3: CTRL-EVENT-CONNECTED - Connection to 86:2a:a8:8b:05:cb completed [id=0 id_str=] Jul 11 20:11:15 littlebrat discord_discord.desktop[4119]: [2022-07-11 20:11:15.091] [4119] (discord.cpp:551): JS console: ["%c[GatewaySocket]","Performing an expedited heartbeat reason: network detected online."] Jul 11 20:11:15 littlebrat wpa_supplicant[1550]: wlp0s20f3: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-66 noise=9999 txrate=26000 Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0970] device (wlp0s20f3): supplicant interface state: 4way_handshake -> completed Jul 11 20:11:15 littlebrat NetworkManager[1519]: <info> [1657566675.0975] device (p2p-dev-wlp0s20f3): supplicant management interface state: 4way_handshake -> completed Jul 11 20:11:17 gateway-ycs dhcpd: DHCPDISCOVER from 5c:e4:2a:c3:f9:42 (littlebrat) via br_v251 Jul 11 20:11:17 gateway-ycs dhcpd: Abandoning IP address 172.16.251.221: pinged before offer Jul 11 20:11:19 gateway-ycs dhcpd: DHCPDISCOVER from 5c:e4:2a:c3:f9:42 via br_v251 Jul 11 20:11:20 gateway-ycs dhcpd: DHCPOFFER on 172.16.251.220 to 5c:e4:2a:c3:f9:42 (littlebrat) via br_v251 Jul 11 20:11:20 gateway-ycs dhcpd: DHCPREQUEST for 172.16.251.220 (172.16.251.254) from 5c:e4:2a:c3:f9:42 (littlebrat) via br_v251 Jul 11 20:11:20 gateway-ycs dhcpd: DHCPACK on 172.16.251.220 to 5c:e4:2a:c3:f9:42 (littlebrat) via br_v251 ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-tools-5.15.0-40 (not installed) ProcVersionSignature: Ubuntu 5.15.0-40.43-generic 5.15.35 Uname: Linux 5.15.0-40-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: alan 2413 F.... pulseaudio CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Mon Jul 11 21:49:21 2022 InstallationDate: Installed on 2022-06-05 (36 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) MachineType: LENOVO 20XWCT01WW ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-40-generic root=/dev/mapper/vgubuntu-root ro quiet splash RelatedPackageVersions: linux-restricted-modules-5.15.0-40-generic N/A linux-backports-modules-5.15.0-40-generic N/A linux-firmware 20220329.git681281e4-0ubuntu3.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/08/2022 dmi.bios.release: 1.52 dmi.bios.vendor: LENOVO dmi.bios.version: N32ET76W (1.52 ) dmi.board.asset.tag: Not Available dmi.board.name: 20XWCT01WW dmi.board.vendor: LENOVO dmi.board.version: NO DPK dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.32 dmi.modalias: dmi:bvnLENOVO:bvrN32ET76W(1.52):bd04/08/2022:br1.52:efr1.32:svnLENOVO:pn20XWCT01WW:pvrThinkPadX1CarbonGen9:rvnLENOVO:rn20XWCT01WW:rvrNODPK:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20XW_BU_Think_FM_ThinkPadX1CarbonGen9: dmi.product.family: ThinkPad X1 Carbon Gen 9 dmi.product.name: 20XWCT01WW dmi.product.sku: LENOVO_MT_20XW_BU_Think_FM_ThinkPad X1 Carbon Gen 9 dmi.product.version: ThinkPad X1 Carbon Gen 9 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1981366/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
