Public bug reported:
Often after resuming from suspend, my laptop (Samsung series 9) is
disconnected from the wifi and it doesn't seem to reconnect. Network
manager seems confused; it displays that it is connected, but it shows
the wrong access point (i.e. one of my neighbour's access points that I
don't even have the password for).
Running iwlist scan manually fixes the problem almost immediately and
network-manager starts showing the correct state (connecting, then
connected to the right AP).
Very similar to bug 1332904 but apport recommended filing diags on a
fresh bug report.
Wifi card appears to be "Network controller: Intel Corporation Centrino
Advanced-N 6235 (rev 24)" according to lspci.
---
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationDate: Installed on 2012-09-26 (1515 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
IpRoute:
default via 192.168.1.254 dev wlan0 proto static metric 600
169.254.0.0/16 dev docker0 scope link metric 1000 linkdown
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.241 metric
600
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
Package: network-manager 1.2.2-0ubuntu0.16.04.3
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Tags: xenial
Uname: Linux 4.4.0-45-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-04-25 (207 days ago)
UserGroups: adm cdrom dialout dip docker lpadmin plugdev sambashare sudo
wireshark
_MarkForUpload: True
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
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-collected xenial
** Package changed: wpasupplicant (Ubuntu) => network-manager (Ubuntu)
** Tags added: apport-collected xenial
** Description changed:
Often after resuming from suspend, my laptop (Samsung series 9) is
disconnected from the wifi and it doesn't seem to reconnect. Network
manager seems confused; it displays that it is connected, but it shows
the wrong access point (i.e. one of my neighbour's access points that I
don't even have the password for).
Running iwlist scan manually fixes the problem almost immediately and
network-manager starts showing the correct state (connecting, then
connected to the right AP).
Very similar to bug 1332904 but apport recommended filing diags on a
fresh bug report.
- Wifi card appears to be "Network controller: Intel Corporation Centrino
- Advanced-N 6235 (rev 24)" according to lspci.
+ Wifi card appears to be "Network controller: Intel Corporation Centrino
Advanced-N 6235 (rev 24)" according to lspci.
+ ---
+ ApportVersion: 2.20.1-0ubuntu2.1
+ Architecture: amd64
+ CurrentDesktop: Unity
+ DistroRelease: Ubuntu 16.04
+ IfupdownConfig:
+ auto lo
+ iface lo inet loopback
+ InstallationDate: Installed on 2012-09-26 (1515 days ago)
+ InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
+ IpRoute:
+ default via 192.168.1.254 dev wlan0 proto static metric 600
+ 169.254.0.0/16 dev docker0 scope link metric 1000 linkdown
+ 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
+ 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.241
metric 600
+ NetworkManager.state:
+ [main]
+ NetworkingEnabled=true
+ WirelessEnabled=true
+ WWANEnabled=true
+ WimaxEnabled=true
+ Package: network-manager 1.2.2-0ubuntu0.16.04.3
+ PackageArchitecture: amd64
+ ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
+ Tags: xenial
+ Uname: Linux 4.4.0-45-generic x86_64
+ UpgradeStatus: Upgraded to xenial on 2016-04-25 (207 days ago)
+ UserGroups: adm cdrom dialout dip docker lpadmin plugdev sambashare sudo
wireshark
+ _MarkForUpload: True
+ 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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https://bugs.launchpad.net/bugs/1643163
Title:
Wifi doesn't work after resume, fixed by forcing scan
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