Repeated Deauthentication event, reason: 4

Owen Garland <[email protected]>
Newsgroups dev.linux.lists.iwd
Message-ID <CAPDaQ_wdXGvy7Sa=10bSC7eAbLut4Jw_CP16Xob7aVtqgCYxSg@mail.gmail.com> 
Hej all,

I couldn't find an issue tracker so I am trying here. Essentially my
problem is I get deauthenticated from AP's at seemingly random
intervals, with `reason: 4`.

iwd --version: 3.3
OS: Arch-Linux 6.11.9-arch1-1
Device: Dell XPS 9370
Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
        Subsystem: Intel Corporation Device 8050
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
iwconfig:
  wlan0     IEEE 802.11  ESSID:"Tronx_Upper"
           Mode:Managed  Frequency:2.422 GHz  Access Point: 22:D2:CC:07:9C:B5
           Bit Rate=65 Mb/s   Tx-Power=22 dBm
           Retry short limit:7   RTS thr:off   Fragment thr:off
           Power Management:off
           Link Quality=31/70  Signal level=-79 dBm
           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
           Tx excessive retries:209  Invalid misc:664   Missed beacon:0

The logs from `journactl -u iwd` show this:

Jan 03 21:52:09 titanium systemd[1]: Starting Wireless service...
Jan 03 21:52:09 titanium iwd[318201]: Wireless daemon version 3.3
Jan 03 21:52:09 titanium iwd[318201]: Loaded configuration from
/etc/iwd/main.conf
Jan 03 21:52:09 titanium systemd[1]: Started Wireless service.
Jan 03 21:52:09 titanium iwd[318201]: Wiphy: 0, Name: phy0
Jan 03 21:52:09 titanium iwd[318201]:         Permanent Address:
64:5d:86:ed:80:5a
Jan 03 21:52:09 titanium iwd[318201]:         2.4GHz Band:
Jan 03 21:52:09 titanium iwd[318201]:                 Bitrates (non-HT):
Jan 03 21:52:09 titanium iwd[318201]:                          1.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                          2.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                          5.5 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         11.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                          6.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                          9.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         12.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         18.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         24.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         36.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         48.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         54.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                 HT Capabilities:
Jan 03 21:52:09 titanium iwd[318201]:                         HT40
Jan 03 21:52:09 titanium iwd[318201]:                         Short GI for 20Mhz
Jan 03 21:52:09 titanium iwd[318201]:                         Short GI for 40Mhz
Jan 03 21:52:09 titanium iwd[318201]:                 HT RX MCS indexes:
Jan 03 21:52:09 titanium iwd[318201]:                         0-15
Jan 03 21:52:09 titanium iwd[318201]:         5GHz Band:
Jan 03 21:52:09 titanium iwd[318201]:                 Bitrates (non-HT):
Jan 03 21:52:09 titanium iwd[318201]:                          6.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                          9.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         12.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         18.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         24.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         36.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         48.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                         54.0 Mbps
Jan 03 21:52:09 titanium iwd[318201]:                 HT Capabilities:
Jan 03 21:52:09 titanium iwd[318201]:                         HT40
Jan 03 21:52:09 titanium iwd[318201]:                         Short GI for 20Mhz
Jan 03 21:52:09 titanium iwd[318201]:                         Short GI for 40Mhz
Jan 03 21:52:09 titanium iwd[318201]:                 HT RX MCS indexes:
Jan 03 21:52:09 titanium iwd[318201]:                         0-15
Jan 03 21:52:09 titanium iwd[318201]:                 VHT Capabilities:
Jan 03 21:52:09 titanium iwd[318201]:                         Short GI for 80Mhz
Jan 03 21:52:09 titanium iwd[318201]:                         Max RX
MCS: 0-9 for NSS: 2
Jan 03 21:52:09 titanium iwd[318201]:                         Max TX
MCS: 0-9 for NSS: 2
Jan 03 21:52:09 titanium iwd[318201]:         Ciphers: BIP-CMAC-128
CCMP-128 TKIP
Jan 03 21:52:09 titanium iwd[318201]:         Supported iftypes:
ad-hoc station ap p2p-client p2p-go p2p-device
Jan 03 21:52:09 titanium iwd[318201]: event: state, old: disconnected,
new: autoconnect_quick
Jan 03 21:52:09 titanium iwd[318201]: udev interface=wlan0 ifindex=6
Jan 03 21:52:10 titanium iwd[318201]: event: connect-info, ssid:
Tronx_Upper, bss: 22:d2:cc:07:9c:b5, signal: -79, load: 0/255
Jan 03 21:52:10 titanium iwd[318201]: event: state, old:
autoconnect_quick, new: connecting (auto)
Jan 03 21:52:10 titanium iwd[318201]: event: state, old: connecting
(auto), new: connecting (netconfig)
Jan 03 21:52:10 titanium iwd[318201]: event: state, old: connecting
(netconfig), new: connected
Jan 03 21:52:15 titanium iwd[318201]: event: roam-scan,
<truncated>
Jan 03 22:41:53 titanium iwd[318201]: Received Deauthentication event,
reason: 4, from_ap: false
Jan 03 22:41:53 titanium iwd[318201]: event: disconnect-info, reason: 4
Jan 03 22:41:53 titanium iwd[318201]: event: state, old: connected,
new: disconnected
Jan 03 22:41:53 titanium iwd[318201]: event: state, old: disconnected,
new: autoconnect_quick
Jan 03 22:41:54 titanium iwd[318201]: event: state, old:
autoconnect_quick, new: autoconnect_full
Jan 03 22:42:13 titanium iwd[318201]: event: connect-info, ssid:
Tronx_Upper, bss: 22:d2:cc:07:9c:b5, signal: -79, load: 0/255
Jan 03 22:42:13 titanium iwd[318201]: event: state, old:
autoconnect_full, new: connecting (auto)
Jan 03 22:42:17 titanium iwd[318201]: event: state, old: connecting
(auto), new: connecting (netconfig)
Jan 03 22:42:18 titanium iwd[318201]: event: state, old: connecting
(netconfig), new: connected

This then appears to happen several times, and at seemingly random
intervals. It can be fine for several hours, then there is one
disconnect, or there may be a few disconnects in a short time. As an
example the 28th had this:

 Dec 28 15:40:49 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 15:41:12 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 16:02:27 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 16:13:12 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 16:13:27 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 16:34:55 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 17:02:41 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 17:11:34 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 17:16:38 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 17:20:27 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 17:25:01 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 18:52:40 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 20:21:20 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 20:21:28 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 20:21:46 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false
 Dec 28 21:07:33 titanium iwd[869]: Received Deauthentication event,
reason: 4, from_ap: false

My investigations haven't led to much, not having a publicly viewable
issue tracker is certainly not helping. I have found a few other
threads where people have had this issue, however none of the proposed
remedies have made an impact. The one thing I did try was disabling
powersaving by adding this to my config:

~ λ cat /etc/modprobe.d/iwlwifi.conf
options iwlmvm power_scheme=1
options iwlwifi power_save=0

 Any suggestions on where to take this, and let me know if I can
provide you with any further information.

Thanks for making open source software <3
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