Public bug reported:

Steps to reproduce:
1) Connect to network via wifi
2) Suspend your notebook
3) Resume from suspend - wifi will be disabled and you have to turn wifi 
manually

HW: Dell Latitude E7450

Description:    Ubuntu Xenial Xerus (development branch)
Release:        16.04

network-manager:
  Instalovaná verze: 1.0.4-0ubuntu10
  Kandidát:          1.0.4-0ubuntu10
  Tabulka verzí:
 *** 1.0.4-0ubuntu10 500
        500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

What happened: wifi is turned off after resume from suspend.
Expected: wifi should be on after resume from suspend.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.0.4-0ubuntu10
ProcVersionSignature: Ubuntu 4.4.0-16.32-generic 4.4.6
Uname: Linux 4.4.0-16-generic x86_64
ApportVersion: 2.20.1-0ubuntu1
Architecture: amd64
CasperVersion: 1.370
CurrentDesktop: Unity
Date: Sat Apr  2 12:05:05 2016
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IpRoute:
 
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160401)
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=cs_CZ.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME                UUID                                  TYPE             
TIMESTAMP   TIMESTAMP-REAL                  AUTOCONNECT  AUTOCONNECT-PRIORITY  
READONLY  DBUS-PATH                                   ACTIVE  DEVICE  STATE  
ACTIVE-PATH 
 Petrikovi           fc08f65c-260b-43b9-ae5d-df784e87ffd2  802-11-wireless  
1459598679  So 2. duben 2016, 12:04:39 UTC  yes          0                     
no        /org/freedesktop/NetworkManager/Settings/1  no      --      --     -- 
         
 Wired connection 1  62835f6a-985f-4f05-afa3-e0fe1f31de93  802-3-ethernet   
1459598635  So 2. duben 2016, 12:03:55 UTC  yes          0                     
no        /org/freedesktop/NetworkManager/Settings/0  no      --      --     --
nmcli-dev:
 DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION  CON-UUID  CON-PATH 
 eno1    ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  --   
       --        --       
 wlp2s0  wifi      unavailable  /org/freedesktop/NetworkManager/Devices/1  --   
       --        --       
 lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/0  --   
       --        --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: 
Error: Object 'nm' is unknown, try 'nmcli help'.

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1565265

Title:
  Wifi disabled after resume from suspend on Dell Latitude E7450

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