Bug 213027 - Intel Centrino Wireless-N 135 disconnects randomly
Summary: Intel Centrino Wireless-N 135 disconnects randomly
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless-intel (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Default virtual assignee for network-wireless-intel
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-05-11 11:13 UTC by Patrick
Modified: 2021-05-11 11:13 UTC (History)
0 users

See Also:
Kernel Version: 5.12.2 and 5.10.34 LTS
Tree: Mainline
Regression: No


Attachments

Description Patrick 2021-05-11 11:13:38 UTC
My wi-fi connection randomly disconnects and I see these messages
in kernel log:


[ter mai 11 04:05:15 2021] wlan0: deauthenticated from <MAC address> (Reason: 7=CLASS3_FRAME_FROM_NONASSOC_STA)
[ter mai 11 04:05:15 2021] audit: type=1130 audit(1620716716.140:174): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[ter mai 11 04:05:15 2021] wlan0: authenticate with <MAC address>
[ter mai 11 04:05:15 2021] wlan0: send auth to <MAC address> (try 1/3)
[ter mai 11 04:05:15 2021] wlan0: authenticated
[ter mai 11 04:05:15 2021] wlan0: associate with <MAC address> (try 1/3)
[ter mai 11 04:05:15 2021] wlan0: RX AssocResp from <MAC address> (capab=0x1401 status=0 aid=1)
[ter mai 11 04:05:15 2021] wlan0: associated
[ter mai 11 04:05:15 2021] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ter mai 11 04:05:28 2021] audit: type=1131 audit(1620716728.750:175): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'


Currently I use kernel 5.12.2-arch1-1 on Arch Linux but the problem also
occurs with linux-lts 5.10.34-1.

Random disconnections persist even when wi-fi authentication
is disabled in the settings page of my internet router.

I also have replaced Network Manager with netctl on my system but
nothing changed.

I use and old Lenovo G400S Touch laptop with this wi-fi adapter:

02:00.0 Network controller: Intel Corporation Centrino Wireless-N 135 (rev c4)
	Subsystem: Intel Corporation Centrino Wireless-N 135 BGN
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi
	
Power management of the wi-fi adapter is off:
wlan0     IEEE 802.11  ESSID:"SSID"  
          Mode:Managed  Frequency:2.427 GHz  Access Point: <MAC adress>   
          Bit Rate=65 Mb/s   Tx-Power=15 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-35 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0

Other things that I tried to stop random wi-fi disconnections:

changed wi-fi mode from B+G+N to just G and then to just N;
specified a channel in the settings of internet router instead of using
automatic mode;
congigured the wi-fi regulatory domain on my system to my country;
configured MAC address of my internet router as BSSID in the settings of my
wi-fi connection;
changed autenthication method in internet router settings from default
WPA/WPA2-PSK + TKIP/AES to WPA2-PSK + AES;
replaced internal dhcp client of Network Manager with dclient;
disabled MAC randomization in Network Manager;
disabled "Protected 802.11n" feature in internet router;
added the following line to /etc/modprobe.d/iwlwifi.conf file:
options iwlwifi swcrypto=1 11n_disable=1

Note You need to log in before you can comment on or make changes to this bug.