[RESEND] Ongoing instability and connection loops with MT7922 (mt7921e driver)

[Angel Parra <jesusnavarrojr188@gmail.com>]

Hello,
I was advised to reach out to this mailing list regarding severe 
wireless connection issues with my MediaTek card. I am writing to 
request a review of the `mt7921e` driver. While I appreciate the 
significant improvements made to the `mt7902` driver recently, the 
support for some newer chipsets currently feels almost unusable in 
real-world conditions.

My hardware details are as follows:
```text
02:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express 
Wireless Network Adapter
         Subsystem: Foxconn International, Inc. Device e0cd
         Kernel driver in use: mt7921e
```

Below are the most consistent bugs and instabilities I have observed to 
the date that constantly interrupt our workflow:

* The adapter often fails to discover nearby access points, despite 
multiple mobile phones confirming their active presence.
* Both 2.4GHz and 5GHz WLANs frequently remain undetected, even when the 
laptop is directly next to the router.
* Regardless of physical proximity to the modem, the connection process 
regularly hangs on "Configuring interface" (in the KDE Plasma desktop 
applet) for over 15 seconds. After this delay, the connection either 
succeeds or fails completely.
* When successfully connected to 2.4GHz bands, download speeds are 
remarkably slow and fall significantly below what my phone achieves on 
the same connection.
* The detection range is severely limited; establishing a link to a 5GHz 
SSID requires being in the exact same room as the access point.
* Introducing a single wall between the router and the laptop triggers 
the aforementioned 15-second "Configuring interface" hang, usually 
resulting in a failed connection.
* Upon failing to connect to an otherwise healthy access point, the 
system enters an infinite loop. It hangs on configuration, fails, jumps 
to the next saved SSID, fails again, and cycles endlessly through all 
saved profiles.
* Overall connection stability is exceptionally poor. A successful 
connection might persist only if the laptop remains perfectly 
stationary. Otherwise, the link randomly drops after a few minutes with 
a "Connection deactivated" state, triggering the failed connection loop.
* Attempting to bypass these issues by tethering to a mobile hotspot 
directly next to the laptop also fails. The adapter either cannot detect 
the hotspot at all or hangs during configuration, leaving the machine 
entirely offline.

The failing connection loop in `dmesg` looks like this over a span of 
several minutes, clearly illustrating the continuous authentication 
timeouts as the adapter cycles through my saved profiles:

```text
[148485.661369] PM: suspend exit
[148488.781860] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148488.795305] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148488.843935] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148488.996043] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148489.044916] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148491.867424] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148491.880895] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148491.939014] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148492.094896] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148492.142676] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148495.354718] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148495.368216] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148495.418798] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148495.577799] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148495.625990] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148499.324558] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148499.337991] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148499.387641] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148499.542987] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148499.593575] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148510.294935] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148510.308356] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148510.360427] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148510.406754] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148510.566970] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148520.573843] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148520.587285] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148520.644274] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148520.693177] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148521.140382] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148541.462597] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148541.476062] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148541.522330] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148541.973505] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148542.022304] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148548.610998] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148548.624376] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148549.075668] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148549.121771] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148549.574886] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148552.427178] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148552.430014] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148552.470639] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148552.513942] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148552.556374] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148565.252575] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148565.266023] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148565.396382] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148565.446749] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148565.605849] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148579.997166] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148580.010594] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148580.072257] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148580.112398] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148580.152361] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148592.848439] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148592.861867] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148592.903480] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148592.995422] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148593.041528] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148607.612953] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148607.626393] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148607.698476] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148607.742091] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148607.783429] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148620.219579] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148620.233011] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148620.328013] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148620.374159] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148620.534020] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148633.224869] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148633.238306] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148633.303939] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148633.356603] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148633.514978] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148637.634640] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148637.647620] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148637.694360] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148637.743291] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148638.192244] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148655.509368] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148655.522809] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148655.572981] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[148656.021379] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[148656.070061] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[148677.626050] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[148677.639450] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[148677.704689] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[148677.753188] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[148677.914243] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[148680.509871] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[148680.512694] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[148680.530021] wlp2s0: authenticated
[148680.530280] wlp2s0: associate with 84:d8:1b:9f:91:10 (try 1/3)
[148680.555487] wlp2s0: RX AssocResp from 84:d8:1b:9f:91:10 (capab=0x411 
status=0 aid=4)
[148680.582777] wlp2s0: associated
[149142.517235] nvidia-modeset: WARNING: GPU:0: Correcting number of 
heads for current head configuration (0x00)
[149361.823195] wlp2s0: Connection to AP 84:d8:1b:9f:91:10 lost
[149418.133906] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149418.145316] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149418.194402] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149418.242746] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149418.692292] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149437.001016] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149437.012391] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149437.095855] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149437.142168] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149437.593548] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149464.557438] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149464.568407] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149464.730630] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149464.777125] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149464.932766] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149474.631073] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149474.644554] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149474.690700] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149474.849313] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149474.895328] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149535.532981] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149535.546820] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149535.678835] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149535.725111] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149535.880819] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149879.705065] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149879.718556] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149879.794297] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149879.843592] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149880.017253] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149888.633997] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149888.647548] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149888.805077] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149888.856075] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149889.015401] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149928.562888] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149928.576448] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149928.619097] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149928.661687] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149928.737998] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149941.444820] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149941.458370] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149941.615999] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149941.662509] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149941.711201] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149956.605669] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149956.619156] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149956.673039] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149956.721411] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149957.172885] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149969.882794] wlp2s0: authenticate with 84:d8:1b:9f:91:10 (local 
address=38:d5:7a:12:c2:3b)
[149969.896301] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 1/3)
[149969.943140] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 2/3)
[149969.990954] wlp2s0: send auth to 84:d8:1b:9f:91:10 (try 3/3)
[149970.442757] wlp2s0: authentication with 84:d8:1b:9f:91:10 timed out
[149984.624558] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[149984.638187] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[149984.697458] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[149984.737544] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[149984.778744] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[150016.560488] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[150016.573492] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[150016.614971] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[150016.673246] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[150016.721924] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[150051.575890] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[150051.589489] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[150051.636535] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[150051.685162] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[150052.134899] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
[150064.827990] wlp2s0: authenticate with f8:64:b8:b8:3d:7a (local 
address=38:d5:7a:12:c2:3b)
[150064.841478] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 1/3)
[150064.966855] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 2/3)
[150065.015378] wlp2s0: send auth to f8:64:b8:b8:3d:7a (try 3/3)
[150065.174847] wlp2s0: authentication with f8:64:b8:b8:3d:7a timed out
```

Thank you for your time and for reading through this report. I would 
greatly appreciate it if this could be routed to the appropriate 
maintainers to help address these driver issues. Have a great day 
wherever you are.