Public bug reported:
I see frequent disconnects due to reason=4, which would be o.k. if
reconnects worked fine. However often on reconnects 4-way handshake
times out and I'm prompted to re-enter our wifi pass-phrase, sometimes
as frequent as every few minutes - a major annoyance :-(
Problem seems to depend a bit on network traffic. However only my
notebook with ubuntu 17.04. seems to be affected. Two iphones, an
android phone and a chromebook seem to have no wifi problems at all.
Also, when I set up wls2 manually in /etc/network/interfaces I haven't
seen failed reconnects so far.
I have had this problem since 16.04. Various work arounds suggested on
the web like changing wifi channel, disabling IPv6, or disabling DHCP
haven't affected this problem.
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: network-manager 1.4.4-1ubuntu3
ProcVersionSignature: Ubuntu 4.10.0-21.23-generic 4.10.11
Uname: Linux 4.10.0-21-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
CurrentDesktop: GNOME
Date: Mon May 22 22:34:01 2017
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2016-08-28 (267 days ago)
InstallationMedia: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160720)
IpRoute:
default via 192.168.2.1 dev wls2 proto static metric 600
169.254.0.0/16 dev wls2 scope link metric 1000
192.168.2.0/24 dev wls2 proto kernel scope link src 192.168.2.129 metric 600
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
NetworkManager.conf:
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: Upgraded to zesty on 2017-04-14 (38 days ago)
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI
WWAN-HW WWAN
running 1.4.4 connected started full enabled enabled
enabled enabled enabled
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug zesty
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https://bugs.launchpad.net/bugs/1692714
Title:
Unstable Wifi: re-Authentication fails after wifi drops and reconnects
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