Wifi fails to resume from standby

[Alex]

System fails to detect any Wifi network SSID's on resume from standby
sudo service network-manager restart brings the list of wireless network back in operation and you can continue as normal until next standby. Or a full system restart. Wireless card replaced with another working model. System fully patched as of 28.04.2016

 description: Wireless interface
       product: Wireless 7260
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: 73
       serial: 0c:8b:fd:b5:7c:0f
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-21-generic firmware=16.242414.0 ip=10.10.10.239 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:47 memory:f7a00000-f7a01fff

Description: Ubuntu 16.04 LTS
Release: 16.04

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.1.93-0ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Apr 28 17:17:33 2016
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2016-04-15 (13 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
IpRoute:
 default via 10.10.10.1 dev wlp2s0 proto static metric 600
 10.10.10.0/23 dev wlp2s0 proto kernel scope link src 10.10.10.239 metric 600
 169.254.0.0/16 dev wlp2s0 scope link metric 1000
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

[Alex (alexeffemey-9)]

Dell Latitude E5540 tested
system76 bonobo extreme (will submit wifi card info once home)

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.

[Alex (alexeffemey-9)]

Bug 765831 submitted to upstream bugzilla

[Alex (alexeffemey-9)]

updated with requested info and logs on bugzilla

https://bugzilla.gnome.org/show_bug.cgi?id=765831

[Alex (alexeffemey-9)]

* SSID MODE CHAN RATE SIGNAL BARS SECURITY
   -- Infra 40 0 Mbit/s 82 ▂▄▆█ WEP
* Lovepuff Infra 44 54 Mbit/s 54 ▂▄__ WPA2
   Lovepuff Infra 6 54 Mbit/s 45 ▂▄__ WPA2
   BTWifi-X Infra 1 54 Mbit/s 44 ▂▄__ WPA1 WPA2 802.1X
   BTHub5-FXKF Infra 1 54 Mbit/s 37 ▂▄__ WPA2
   BTWifi-with-FON Infra 1 54 Mbit/s 35 ▂▄__
   TALKTALKB93E7A Infra 8 54 Mbit/s 35 ▂▄__ WPA1 WPA2
   SKYDA398 Infra 1 54 Mbit/s 29 ▂___ WPA2
   TALKTALKB93E7A Infra 36 54 Mbit/s 22 ▂___ WPA1 WPA2
   EE-BrightBox-mfrn44 Infra 1 54 Mbit/s 20 ▂___ WPA1 WPA2
   BTWifi-X Infra 6 54 Mbit/s 20 ▂___ WPA1 WPA2 802.1X
   TillyTillyTilly Infra 6 54 Mbit/s 20 ▂___ WPA2
   BTWifi-with-FON Infra 6 54 Mbit/s 20 ▂___
   BTHub5-5J73 Infra 1 54 Mbit/s 19 ▂___ WPA2
   BTWifi-with-FON Infra 1 54 Mbit/s 19 ▂___
   BTHub4-N8KG Infra 6 54 Mbit/s 19 ▂___ WPA1 WPA2
   BTWifi-X Infra 1 54 Mbit/s 17 ▂___ WPA1 WPA2 802.1X

under normal operation

[Alex (alexeffemey-9)]

bugzilla bug still in progress but appears assigned to NetworkManager maintainer(s) and was confirmed by another user with a Thinkpad.

I have added more laptop affected including tested with Dell Latitude E6400 E5520 E5540 and System76 Bonobo extreme (Various Wifi cards)