sporadic WiFi aborts with opening a window requesting to enter the WiFi password that is pre-filled (wpa_supplicant[..]: l2_packet_send - sendto: No buffer space available)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
network-manager-applet (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
The WiFi connection is aborted and the nm_applet shows the window to enter the WLAN password. The password is pre-filled and you can click the ok button to reconnect.
The error occurs sometimes very often (e.g. 10 times/minute) or seldom (only one per day).
The problem occurs in Xubuntu 20.04.1 LTS since update to kernel 5.4.0-56 (5.4.0-58 too).
With other Xubuntu versions (e.g. 18.04 LTS) or kernel 5.4.0-54 or earlier the problem did not appear. Other OS (eg W10 or div Android) do not see this problem too.
Additional asked information:
1) lsb_release -rd
Description: Ubuntu 20.04.1 LTS
Release: 20.04
2) apt-cache policy network-manager
network-manager:
Installiert: 1.22.10-1ubuntu2.2
Installations
Versionstabelle:
*** 1.22.10-1ubuntu2.2 500
500 http://
100 /var/lib/
1.
500 http://
3) What you expected to happen: WLAN switch in the background with no net abort.
4) What happened instead: Network abort, window-popup with focus to password, interrupted work.
All hardware that I know show the problem on laptops with Intel WLAN devices.
In /var/log/syslog you can find the error beginning with a
"wpa_supplicant
entry. Some lines later you see the entry "asking for a new key".
The problem can be reproduced by forcing a WLAN reconnect. This happens, when the router changes the channel or when the wifi signal strength tends to modify the way from the computer to the router (direct connect or via a repeater or changing the repeater e.g. in a Mesh). This behaviour can be seen in the 2,4GHz and in the 5GHz net.
In the sent .apport file you'll see the switch from repeater (2c:91:..) to router (44:4e:..) at "Dec 20 14:18" as the repeater is forced to reboot to reproduce the error.
For further information you can see the discussion at https:/
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: network-
ProcVersionSign
Uname: Linux 5.4.0-58-generic x86_64
ApportVersion: 2.20.11-
Architecture: amd64
CasperMD5CheckR
CurrentDesktop: XFCE
Date: Sun Dec 20 14:19:27 2020
ExecutablePath: /usr/bin/nm-applet
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2019-12-28 (357 days ago)
InstallationMedia: Xubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
IpRoute:
default via 192.168.146.1 dev wlp3s0 proto dhcp metric 600 linkdown
169.254.0.0/16 dev wlp3s0 scope link metric 1000 linkdown
192.168.146.0/24 dev wlp3s0 proto kernel scope link src 192.168.146.113 metric 600 linkdown
ProcEnviron:
LANGUAGE=de_DE
PATH=(custom, user)
XDG_RUNTIME_
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: network-
UpgradeStatus: Upgraded to focal on 2020-10-28 (52 days ago)
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
running 1.22.10 connecting started none enabled enabled enabled enabled disabled
description: | updated |
summary: |
sporadic WiFi aborts with opening a window requesting to enter the WiFi - password that is pre-filled + password that is pre-filled (wpa_supplicant[..]: l2_packet_send - + sendto: No buffer space available) |
This BUG is intensively discussed in german forum:
https:/ /forum. ubuntuusers. de/topic/ funknetz- schluessel- werden- staendig- abgefragt