** Description changed:
- The WiFi connection is aborted an the nm_applet shows the window to
- enter the WLAN password. The password is pre-filled an you can click the
- ok button to reconnect.
+ 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
+ Description:Ubuntu 20.04.1 LTS
+ Release:20.04
2) apt-cache policy network-manager
network-manager:
- Installiert: 1.22.10-1ubuntu2.2
- Installationskandidat: 1.22.10-1ubuntu2.2
- Versionstabelle:
- *** 1.22.10-1ubuntu2.2 500
- 500 http://de.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
- 100 /var/lib/dpkg/status
- 1.22.10-1ubuntu1 500
- 500 http://de.archive.ubuntu.com/ubuntu focal/main amd64 Packages
- 3) What you expected to happen: WLAN witch in the background with no net
abort.
+ Installiert: 1.22.10-1ubuntu2.2
+ Installationskandidat: 1.22.10-1ubuntu2.2
+ Versionstabelle:
+ *** 1.22.10-1ubuntu2.2 500
+ 500 http://de.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
+ 100 /var/lib/dpkg/status
+ 1.22.10-1ubuntu1 500
+ 500 http://de.archive.ubuntu.com/ubuntu focal/main amd64 Packages
+ 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[xxx]: l2_packet_send - sendto: No buffer space available"
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 ca be seen in the 2,4GHz
and in the 5GHz net.
+ In /var/log/syslog you can find the error beginning with a
- In the sent .apport file you see the switch from repeater (2c:91:..) to
router (44:4e:..) at "Dec 29 14:18" as the repeater is forced to reboot to
produce the error.
+ "wpa_supplicant[xxx]: l2_packet_send - sendto: No buffer space
+ available"
+
+ 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://answers.launchpad.net/ubuntu/+question/694566
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: network-manager-gnome 1.8.24-1ubuntu3
ProcVersionSignature: Ubuntu 5.4.0-58.64-generic 5.4.73
Uname: Linux 5.4.0-58-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
CasperMD5CheckResult: skip
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
+ # 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
+ 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_DIR=
- LANG=de_DE.UTF-8
- SHELL=/bin/bash
+ LANGUAGE=de_DE
+ PATH=(custom, user)
+ XDG_RUNTIME_DIR=
+ LANG=
