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Subject: Bug report: Can connect with 'wext', but not 'nl80211'
From:   "Matthias G." <maps4711@gmx.de>
To:     linux-wireless@vger.kernel.org
Date:   Wed, 30 Nov 2022 20:44:57 +0100
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Hello,

I hope this is the right place to report. I can connect via WiFi to my LTE =
router with the legacy 'wext' driver but not with 'nl80211'.

The router is a rebranded version of this one:
https://forum.openwrt.org/t/alcatel-tlc-hh40-lte-router-based-on-openwrt/77=
580

This command fails:
# wpa_supplicant -c wpa-home-lte.conf -i wlan0

wlan0: SME: Trying to authenticate with dc:9b:d6:de:d4:27 (SSID=3D'<redacte=
d>' freq=3D2452 MHz)
wlan0: Trying to associate with dc:9b:d6:de:d4:27 (SSID=3D'<redacted>' freq=
=3D2452 MHz)
wlan0: SME: Trying to authenticate with dc:9b:d6:de:d4:27 (SSID=3D'<redacte=
d>' freq=3D2452 MHz)
wlan0: Trying to associate with dc:9b:d6:de:d4:27 (SSID=3D'<redacted>' freq=
=3D2452 MHz)
wlan0: SME: Trying to authenticate with dc:9b:d6:de:d4:27 (SSID=3D'<redacte=
d>' freq=3D2452 MHz)
wlan0: Trying to associate with dc:9b:d6:de:d4:27 (SSID=3D'<redacted>' freq=
=3D2452 MHz)
wlan0: SME: Trying to authenticate with dc:9b:d6:de:d4:27 (SSID=3D'<redacte=
d>' freq=3D2452 MHz)
wlan0: Trying to associate with dc:9b:d6:de:d4:27 (SSID=3D'<redacted>' freq=
=3D2452 MHz)
wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=3D0 ssid=3D"<redacted>" auth_failur=
es=3D1 duration=3D10 reason=3DCONN_FAILED

while this succeeds:
# wpa_supplicant -Dwext -c wpa-home-lte.conf -i wlan0

Successfully initialized wpa_supplicant
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
wlan0: Trying to associate with dc:9b:d6:de:d4:27 (SSID=3D'<redacted>' freq=
=3D2452 MHz)
wlan0: Associated with dc:9b:d6:de:d4:27
wlan0: WPA: Key negotiation completed with dc:9b:d6:de:d4:27 [PTK=3DCCMP GT=
K=3DCCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to dc:9b:d6:de:d4:27 completed [id=
=3D0 id_str=3D]

Kernel logs, failure:
Nov 30 20:24:41 papaya kernel: wlan0: authenticate with dc:9b:d6:de:d4:27
Nov 30 20:24:41 papaya kernel: wlan0: bad VHT capabilities, disabling VHT
Nov 30 20:24:41 papaya kernel: wlan0: Invalid HE elem, Disable HE
Nov 30 20:24:41 papaya kernel: wlan0: 80 MHz not supported, disabling VHT
Nov 30 20:24:42 papaya kernel: wlan0: send auth to dc:9b:d6:de:d4:27 (try 1=
/3)
Nov 30 20:24:42 papaya kernel: wlan0: authenticated
Nov 30 20:24:42 papaya kernel: wlan0: associate with dc:9b:d6:de:d4:27 (try=
 1/3)
Nov 30 20:24:42 papaya kernel: wlan0: associate with dc:9b:d6:de:d4:27 (try=
 2/3)
Nov 30 20:24:42 papaya kernel: wlan0: associate with dc:9b:d6:de:d4:27 (try=
 3/3)
Nov 30 20:24:42 papaya kernel: wlan0: association with dc:9b:d6:de:d4:27 ti=
med out
Nov 30 20:24:45 papaya kernel: wlan0: authenticate with dc:9b:d6:de:d4:27
Nov 30 20:24:45 papaya kernel: wlan0: bad VHT capabilities, disabling VHT
Nov 30 20:24:45 papaya kernel: wlan0: Invalid HE elem, Disable HE
Nov 30 20:24:45 papaya kernel: wlan0: 80 MHz not supported, disabling VHT
Nov 30 20:24:45 papaya kernel: wlan0: send auth to dc:9b:d6:de:d4:27 (try 1=
/3)
Nov 30 20:24:45 papaya kernel: wlan0: authenticated
Nov 30 20:24:45 papaya kernel: wlan0: associate with dc:9b:d6:de:d4:27 (try=
 1/3)
Nov 30 20:24:45 papaya kernel: wlan0: associate with dc:9b:d6:de:d4:27 (try=
 2/3)
Nov 30 20:24:46 papaya kernel: wlan0: associate with dc:9b:d6:de:d4:27 (try=
 3/3)
Nov 30 20:24:46 papaya kernel: wlan0: association with dc:9b:d6:de:d4:27 ti=
med out

Kernel logs, success:
Nov 30 20:30:45 papaya kernel: wlan0: authenticate with dc:9b:d6:de:d4:27
Nov 30 20:30:45 papaya kernel: wlan0: bad VHT capabilities, disabling VHT
Nov 30 20:30:45 papaya kernel: wlan0: Invalid HE elem, Disable HE
Nov 30 20:30:45 papaya kernel: wlan0: 80 MHz not supported, disabling VHT
Nov 30 20:30:45 papaya kernel: wlan0: send auth to dc:9b:d6:de:d4:27 (try 1=
/3)
Nov 30 20:30:45 papaya kernel: wlan0: authenticated
Nov 30 20:30:45 papaya kernel: wlan0: associate with dc:9b:d6:de:d4:27 (try=
 1/3)
Nov 30 20:30:45 papaya kernel: wlan0: RX AssocResp from dc:9b:d6:de:d4:27 (=
capab=3D0x431 status=3D0 aid=3D1)
Nov 30 20:30:45 papaya kernel: wlan0: associated
Nov 30 20:30:45 papaya kernel: IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link b=
ecomes ready

System information:
Artix dist, Linux papaya 6.0.7-artix1-1 #1 SMP PREEMPT_DYNAMIC Thu, 03 Nov =
2022 21:10:08 +0000 x86_64 GNU/Linux

wpa_supplicant v2.10

05:00.0 Network controller: MEDIATEK Corp. MT7921 802.11ax PCI Express Wire=
less Network Adapter

mt7921e                32768  0
mt7921_common          94208  1 mt7921e
mt76_connac_lib        69632  2 mt7921e,mt7921_common
mt76                  102400  3 mt7921e,mt7921_common,mt76_connac_lib
mac80211             1298432  3 mt76,mt7921_common,mt76_connac_lib
libarc4                16384  1 mac80211
cfg80211             1118208  4 mt76,mac80211,mt7921_common,mt76_connac_lib
rfkill                 32768  5 asus_wmi,bluetooth,cfg80211

I can compile a custom linux kernel and wpa_supplicant for e.g. debugging p=
urposes. Let me know if you need more information. I didn't
subscribe to this mailing list, so please answer directly.

Regards,
Matthias