Wifi connections not available after system startup
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
network-manager (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
After system startup, in some cases (it seems randomly), network-manager does not show any connections available (empty list of networks in systray icon menu). If i press "configure connections" button, connections editor shows two connections, but it is not possible to activate any of them. Connections are called as "wired connection 1" and "Wired connection 2". If i go to connection settings, i can see that one of them is configured to use my ethernet cable interface enp0s25 (i usually have no ethernet cable attached), and another is configured to use my wifi interface wlp4s0. So it seems that problem is that for some reason network-manager "thinks" that my wireless interface is wired, and so does not even try to connect to any wifi network.
If I do sudo service network-manager restart, all becomes ok, network-manager immediately sees my wifi network and connects to it. But having to manual restart of service right after system startup indicates that something is very wrong.
This is newly installed Kubuntu 16.04 with latest updates.
What I tried to do:
* edit NetworkManager.conf to set [ifupdown] managed = true. No changes in behaivour at all.
* remove and install again network-manager package. For some time I thought that resolved the problem, but after few days it reproduced again.
* plug ethernet cable, connect to wired network, unplug cable. No results.
dmesg | grep wifi output:
[ 3.693651] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-
[ 3.706221] iwlwifi 0000:04:00.0: loaded firmware version 16.242414.0 op_mode iwlmvm
[ 3.749453] iwlwifi 0000:04:00.0: Detected Intel(R) Wireless N 7260, REV=0x144
[ 3.749526] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 3.749782] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 3.965973] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0
[ 4.329538] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 4.330033] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 4.535001] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 4.535266] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 122.272761] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 122.273048] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 122.470381] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
[ 122.470640] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled
Please ask if you need me to attach any other logs.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.1.93-0ubuntu4
ProcVersionSign
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelMo
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Tue May 10 21:23:27 2016
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2016-04-30 (9 days ago)
InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
IpRoute:
default via 192.168.1.1 dev wlp4s0 proto static metric 600
169.254.0.0/16 dev wlp4s0 scope link metric 1000
192.168.1.0/24 dev wlp4s0 proto kernel scope link src 192.168.1.107 metric 600
NetworkManager.
[main]
NetworkingEnab
WirelessEnable
WWANEnabled=true
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_
LANG=ru_RU.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile.
nmcli-con:
NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-
tplink-portnov 1 fdff901c-
Проводное соединение 1 08666419-
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
wlp4s0 wifi connected /org/freedeskto
enp0s25 ethernet unavailable /org/freedeskto
lo loopback unmanaged /org/freedeskto
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.
Also, I guess this bug may be somehow related to https:/ /bugs.launchpad .net/ubuntu/ +source/ network- manager/ +bug/1578533, which also reproduces for me on the same laptop.