Public bug reported:
Hello Ubuntu Kernel Team,
I am reporting a reproducible Wi-Fi instability issue with the Intel
AX211 card on a TP-Link Deco mesh network. This affects both Linux Mint
and a live Ubuntu environment, pointing to a kernel or driver-level
incompatibility.
**[Core Problem]**
The connection drops every few minutes. The kernel log confirms this is not a
signal loss, but a forced roam between mesh nodes initiated by a
"deauthenticating by local choice (Reason: 3=DEAUTH_LEAVING)" event. The
iwlwifi driver does not handle this handoff seamlessly, resulting in a full
disconnection.
**[Hardware & Network Environment]**
* **Wi-Fi Card:** Intel Corporation Wi-Fi 6E AX211 160MHz
* **Mesh System:** TP-Link Deco M9 Plus
* **Mode:** Access Point (AP) mode
**[Critical Test Results]**
* **Hardware Confirmed Working:** The laptop is 100% stable on a non-mesh
mobile hotspot.
* **Mesh Features Disabled:** The issue persists even after disabling Fast
Roaming, Beamforming, and separating the 2.4/5GHz bands in the Deco app.
* **Guest Network Fails:** The instability also occurs on the Deco's isolated
Guest Network.
This isolates the fault to the Deco's fundamental (non-optional) node-
steering logic and its incompatibility with the iwlwifi driver's
handling of these specific deauthentication commands.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: wifi
** Attachment added: "Unified dmesg and ping log showing forced roaming"
https://bugs.launchpad.net/bugs/2122280/+attachment/5907439/+files/wifi_unified_log.txt
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https://bugs.launchpad.net/bugs/2122280
Title:
iwlwifi: Intel AX211 disconnects and roams constantly on TP-Link Deco
Mesh (AP Mode)
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