NetworkManager stops working until re-run

[Aleksei]

after awake from sleep(open my lenovo laptop lid) network manager shows - it is connected to one of wi-fi's networks (not mine) - switching on\off wifi, networking service doesn't help.

Here is workaround:
ps -Af | grep -i networkmanager (write down the pid)
sudo kill pid
sudo /usr/sbin/NetworkManager --no-daemon

It happens time to time when awake after sleep

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.2.2-0ubuntu0.16.04.3
Uname: Linux 4.4.23-040423-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Feb 23 11:57:58 2017
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2015-12-17 (433 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
IpRoute:
 default via 192.168.1.1 dev wlan0 proto static metric 600
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.65 metric 600
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: Upgraded to xenial on 2016-08-17 (189 days ago)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 wlan0 wifi connected /org/freedesktop/NetworkManager/Devices/0 beeline-198 242d5038-e875-4c07-b0ec-ba6fc4470e24 /org/freedesktop/NetworkManager/ActiveConnection/0
 eth0 ethernet unavailable /org/freedesktop/NetworkManager/Devices/1 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/2 -- -- --
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

[Aleksei (tav-susp)]

+sometimes display's brightness is too dark when awake after sleep - needs to be altered manually
I know it is different bug - but, however)