Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: network-manager (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1653324
Title:
No wireless networks visible on resume from suspend. Erroneous Wired
connection icon in nm-applet
Status in network-manager package in Ubuntu:
Confirmed
Bug description:
As others have reported this I just woke my Thinkpad 450 to find no
network. I resolved this by manually reconnecting with "nmcli c up id
<network_name>" where <network_name> was taken from the output of
"nmcli c" on the same machine.
Steps to reproduce:-
This is an intermittent issue which for me happens once in a while,
but not super often to be annoying. For others it appears to happen
often. I suspend my laptop multiple times daily and don't see this
more than once per couple of weeks, or sometimes once a month.
* Use laptop in one location on wifi
* Suspend (shut lid) laptop
* Resume (open lid) in same location (so same wifi networks nearby)
Expected behaviour:-
* Network come back up
Actual behaviour:-
* No network connectivity
* nm-applet icon shows the two arrows as if a wired connection is made
* No or few wireless erroneous wireless networks shown nearby
* Workaround 1 (reconnect from command line)
nmcli c
(lists wireless networks, look for yours in the "NAME" column, use it
in command below)
nmcli c up id NAME
* Workaround 2 (restart entire network stack)
This AskUbuntu question has one solution
http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend-
after-16-04-upgrade#761220
Further information:-
Output of nmcli m while suspending and resuming:-
alan@gort:~$ nmcli m
Connectivity is now 'none'
Networkmanager is now in the 'asleep' state
enp0s25: unmanaged
wlp3s0: unmanaged
Connectivity is now 'full'
Networkmanager is now in the 'connected (local only)' state
enp0s25: unavailable
wlp3s0: unavailable
wlp3s0: disconnected
Output of nmcli after using workaround 1 above:-
popey_2.4g_bed: connection profile changed
Connectivity is now 'none'
Networkmanager is now in the 'connecting' state
wlp3s0: connecting (configuring)
wlp3s0: using connection 'popey_2.4g_bed'
wlp3s0: connecting (getting IP configuration)
Connectivity is now 'full'
'popey_2.4g_bed' is now the primary connection
Networkmanager is now in the 'connected' state
wlp3s0: connected
popey_2.4g_bed: connection profile changed
Hardware info:-
Thinkpad T450
alan@gort:~$ lspci | grep -i net
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection (3)
I218-LM (rev 03)
03:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)
alan@gort:~$ uptime
05:31:54 up 2 days, 18:03, 7 users, load average: 0.34, 0.94, 1.04
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.2.2-0ubuntu0.16.04.3
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Dec 31 05:38:47 2016
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2016-04-27 (247 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
IpRoute:
default via 192.168.1.1 dev wlp3s0 proto static metric 600
10.0.3.0/24 dev lxcbr0 proto kernel scope link src 10.0.3.1 linkdown
10.235.160.0/24 dev lxdbr0 proto kernel scope link src 10.235.160.1
linkdown
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.1.0/24 dev wlp3s0 proto kernel scope link src 192.168.1.95
metric 600
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW
WIFI WWAN-HW WWAN
running 1.2.2 connected started full enabled enabled
enabled enabled enabled
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