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* rtw88: RTL8822BE (10ec:b822) never authenticates on 5 GHz with a Huawei router; poor 2.4 GHz link; same hardware works fine on Windows
@ 2026-11-03 22:29 Pablo Martínez Ríos
  2026-11-04  1:33 ` Ping-Ke Shih
  0 siblings, 1 reply; 3+ messages in thread
From: Pablo Martínez Ríos @ 2026-11-03 22:29 UTC (permalink / raw)
  To: linux-wireless, pkshih

Hello,

I would like to report a problem with an RTL8822BE using rtw88_8822be.
The same card, in the same spot, works well on Windows, so I suspect a
driver/firmware issue rather than coverage. I am happy to run any tests
or try patches.

HARDWARE / SOFTWARE
- Laptop: HP Pavilion 15-bc450ns (i5-8300H), BIOS F.32
- Card: Realtek RTL8822BE, PCI ID 10ec:b822 (04:00.0), HP subsystem.
  Both antenna cables are connected; "iw phy" reports available and
  configured antennas TX 0x3 / RX 0x3.
- Debian 13.7 live USB, kernel 6.12.107+deb13-amd64, firmware-realtek
  20250410-2, rtw88 firmware 27.2.0 (H2C 13)
- Same behaviour earlier on CachyOS (a recent 7.x kernel, exact version
  not recorded) and on an Ubuntu live session (26.10)
- Module parameters at defaults: disable_lps_deep=N, disable_aspm=N,
  support_bf=Y
- Router: ISP-supplied Huawei OptiXstar EG8145X6-10, separate SSIDs for
  2.4 GHz (ch 6, 20 MHz) and 5 GHz (ch 36, auto width). The router is
  one floor below the laptop, with a concrete slab in between.

PROBLEM 1: 5 GHz
Linux never authenticates. This repeats indefinitely:

  wlo1: authenticate with 22:87:ec:xx:xx:08 (local address=90:32:4b:xx:xx:xx)
  wlo1: send auth to 22:87:ec:xx:xx:08 (try 1/3)
  wlo1: send auth to 22:87:ec:xx:xx:08 (try 2/3)
  wlo1: send auth to 22:87:ec:xx:xx:08 (try 3/3)
  wlo1: authentication with 22:87:ec:xx:xx:08 timed out

- It fails with WPA2-PSK and with WPA3 (SAE), and with the router set to
  WPA/WPA2 TKIP+AES and to WPA2/WPA3 AES, so it fails at the 802.11
  authentication frame, before any SAE/EAPOL exchange.
- Same result with regulatory domain 00 and with "iw reg set ES".
- The BSS appears in scans (its beacons carry country IE ES), but no
  authentication response is ever received.
- Windows 11 on the same laptop, same spot (Realtek driver
  2024.0.10.209): connects with WPA3-Personal, reported RSSI -76 to
  -81 dBm, 80/80 pings answered, 3-9 ms, link rate 260-292 Mbps as
  reported by Windows.

PROBLEM 2: 2.4 GHz
- Linux associates, but the link is very poor: iw reports about -73 to
  -76 dBm, and the beacon loss counter rises about once per second
  (14 to 65 over roughly 2 minutes). Across 5 runs, ping to the router
  showed 0-54% loss and average RTT of 37-278 ms.
- Kernel messages: "rtw_8822be 0000:04:00.0: firmware failed to leave
  lps state" (several times), and once "failed to send h2c command".
- The beacon signal average (-97 to -109 dBm) is far below the frame
  signal average (about -75 dBm). With a phone hotspot at -48 dBm both
  agree (-46). Occasionally signal readings of -100 to -112 dBm appear
  with the second chain at 0 while traffic continues.
- Windows, same spot: 60/60 pings, average 12 ms (max 157 ms).
- With a phone hotspot (2.4 GHz, ch 1, -48 dBm), Linux works well:
  rx 78 Mbit/s (VHT-MCS 8, NSS 1), tx 65 Mbit/s (MCS 7).

TRIED WITHOUT EFFECT
- "iw dev wlo1 set power_save off" (one run had 54% ping loss)
- rtw88_pci disable_aspm=Y (lspci still showed "ASPM L1 Enabled"
  afterwards)
- WPA2 vs WPA3, regulatory domain 00 vs ES

COULD NOT CHECK
/sys/kernel/debug/ieee80211/phy0/rtw88 does not exist on the Debian
kernel (presumably rtw88 debugfs is not enabled), so I could not read
tx_pwr_tbl, phy_info or coex_info, nor test the edcca_enable switch.
A single correctable PCIe error (BadDLLP) was logged once; the AER
counters were 0 later.

QUESTIONS
Is this a known issue? Which additional data would be most useful (a
kernel with rtw88 debugfs, a debug_mask setting, a monitor-mode
capture)? I can provide full logs and test patches.

Thanks,
Pablo.

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2026-11-04 10:45 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-11-03 22:29 rtw88: RTL8822BE (10ec:b822) never authenticates on 5 GHz with a Huawei router; poor 2.4 GHz link; same hardware works fine on Windows Pablo Martínez Ríos
2026-11-04  1:33 ` Ping-Ke Shih
2026-11-04 10:45   ` Bitterblue Smith

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