Ubuntu
network-manager package

Network Manager doesn't look for wifi after resume until restarted

Bug #1632418 reported by Bartosz Woronicz on 2016-10-11

44

This bug affects 10 people

Affects		Status	Importance	Assigned to	Milestone
	NetworkManager	Confirmed	Medium	gnome-bugs #726121
	network-manager (Ubuntu)	Confirmed	High	Unassigned

Bug Description

Once upon the time Network Manager doesn't scan to connect the networks until restarted

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.2.2-0ubuntu0.16.04.1
Uname: Linux 4.8.0-040800rc8-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Oct 11 08:12:47 2016
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2015-05-20 (509 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
IpRoute:
default via 192.168.32.254 dev wlp3s0 proto static metric 600
192.168.32.0/24 dev wlp3s0 proto kernel scope link src 192.168.32.245 metric 600
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
SourcePackage: network-manager
UpgradeStatus: Upgraded to xenial on 2016-04-23 (170 days ago)
modified.conffile..etc.NetworkManager.dispatcher.d.01ifupdown: [deleted]
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2016-04-03T14:41:30.662323
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
wlp3s0 wifi connected /org/freedesktop/NetworkManager/Devices/1 ~\_/~ a9c0eb9d-4df3-4769-95a6-b910d563d526 /org/freedesktop/NetworkManager/ActiveConnection/0
enp0s25 ethernet unavailable /org/freedesktop/NetworkManager/Devices/2 -- -- --
lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/3 -- -- --
vpn0 tun unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- --
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

Tags:

Revision history for this message

Bartosz Woronicz (mastier1) wrote on 2016-10-11:

#1

CRDA.txt Edit (227 bytes, text/plain; charset="utf-8")
Dependencies.txt Edit (9.0 KiB, text/plain; charset="utf-8")
IpAddr.txt Edit (1.3 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (538 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (78.9 KiB, text/plain; charset="utf-8")
NetDevice.enp0s25.txt Edit (837 bytes, text/plain; charset="utf-8")
NetDevice.lo.txt Edit (248 bytes, text/plain; charset="utf-8")
NetDevice.vpn0.txt Edit (329 bytes, text/plain; charset="utf-8")
NetDevice.wlp3s0.txt Edit (948 bytes, text/plain; charset="utf-8")
NetworkManager.conf.txt Edit (127 bytes, text/plain; charset="utf-8")
PciNetwork.txt Edit (1.3 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (100 bytes, text/plain; charset="utf-8")
RfKill.txt Edit (128 bytes, text/plain; charset="utf-8")
WifiSyslog.txt Edit (517.9 KiB, text/plain; charset="utf-8")
modified.conffile..etc.NetworkManager.NetworkManager.conf.txt Edit (128 bytes, text/plain; charset="utf-8")
nmcli-con.txt Edit (19.3 KiB, text/plain; charset="utf-8")

Revision history for this message

Aurimas (4urimas) wrote on 2016-10-13:

#2

I think this is similar (or the same) issue as https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1632228 and https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1632228

What is your laptop?

Revision history for this message

Launchpad Janitor (janitor) wrote on 2016-10-13:

#3

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in network-manager (Ubuntu):
status:	New → Confirmed

Revision history for this message

Aurimas (4urimas) wrote on 2016-10-13:

#4

Can you confirm if those are the bugs that are like yours?

Revision history for this message

Bartosz Woronicz (mastier1) wrote on 2016-10-13:

#5

It happens on both home and office
Lenovo X230T
HP ProBook G640

The issue is not like mine. At my case 'systemctl restart network-manager' does the job.

Revision history for this message

Alberto Salvia Novella (es20490446e) wrote on 2016-10-14:

#6

It happens to me even by disabling wifi and re-enabling it again.

Changed in network-manager (Ubuntu):
importance:	Undecided → High

Bug Watch Updater (bug-watch-updater) on 2016-12-25

Changed in network-manager:
importance:	Unknown → Medium
status:	Unknown → Confirmed

Revision history for this message

lnxtx (bigtux) wrote on 2017-01-09:

#7

"iwlist scan" seems to always help me (less drastic than restarting the NM). Different laptops, some were upgraded to 16.04 and I did not see that issue on those boxes before 16.04.

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