@Martin, it's Xenial.

| Mar 12 17:35:25 ragnar NetworkManager[23292]: <info>  sleep requested 
(sleeping: no  enabled: yes)
| Mar 12 17:35:25 ragnar NetworkManager[23292]: <info>  sleeping...
| Mar 12 17:35:25 ragnar NetworkManager[23292]: <info>  (wlp3s0): device state 
change: activated -> unmanaged (reason 'sleeping') [100 10 37]
| Mar 12 17:35:26 ragnar NetworkManager[23292]: <info>  (wlp3s0): canceled DHCP 
transaction, DHCP client pid 8279
| Mar 12 17:35:26 ragnar NetworkManager[23292]: <info>  (wlp3s0): DHCPv4 state 
changed bound -> done
| Mar 12 17:35:26 ragnar kernel: [143996.969825] wlp3s0: deauthenticating from 
24:a4:3c:99:31:37 by local choice (Reason: 3=DEAUTH_LEAVING)
| Mar 12 17:35:26 ragnar wpa_supplicant[23157]: wlp3s0: CTRL-EVENT-DISCONNECTED 
bssid=24:a4:3c:99:31:37 reason=3 locally_generated=1
| Mar 12 17:35:26 ragnar NetworkManager[23292]: <info>  NetworkManager state is 
now ASLEEP
| Mar 12 17:35:26 ragnar wpa_supplicant[23157]: p2p-dev-wlp3s0: 
CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
| Mar 12 17:35:26 ragnar kernel: [143996.986106] cfg80211: World regulatory 
domain updated:
| Mar 12 17:35:26 ragnar kernel: [143996.986111] cfg80211:  DFS Master region: 
unset
| Mar 12 17:35:26 ragnar kernel: [143996.986113] cfg80211:   (start_freq - 
end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
| Mar 12 17:35:26 ragnar kernel: [143996.986117] cfg80211:   (2402000 KHz - 
2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
| Mar 12 17:35:26 ragnar kernel: [143996.986120] cfg80211:   (2457000 KHz - 
2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
| Mar 12 17:35:26 ragnar kernel: [143996.986122] cfg80211:   (2474000 KHz - 
2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
| Mar 12 17:35:26 ragnar kernel: [143996.986125] cfg80211:   (5170000 KHz - 
5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
| Mar 12 17:35:26 ragnar kernel: [143996.986129] cfg80211:   (5250000 KHz - 
5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
| Mar 12 17:35:26 ragnar kernel: [143996.986133] cfg80211:   (5490000 KHz - 
5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
| Mar 12 17:35:26 ragnar kernel: [143996.986136] cfg80211:   (5735000 KHz - 
5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
| Mar 12 17:35:26 ragnar kernel: [143996.986139] cfg80211:   (57240000 KHz - 
63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
| Mar 12 17:35:26 ragnar wpa_supplicant[23157]: p2p-dev-wlp3s0: 
CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY alpha2=AU
| Mar 12 17:35:26 ragnar kernel: [143996.990173] cfg80211: Regulatory domain 
changed to country: AU
| Mar 12 17:35:26 ragnar kernel: [143996.990177] cfg80211:  DFS Master region: 
ETSI
| Mar 12 17:35:26 ragnar kernel: [143996.990179] cfg80211:   (start_freq - 
end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
| Mar 12 17:35:26 ragnar kernel: [143996.990183] cfg80211:   (2402000 KHz - 
2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
| Mar 12 17:35:26 ragnar kernel: [143996.990186] cfg80211:   (5170000 KHz - 
5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
| Mar 12 17:35:26 ragnar kernel: [143996.990189] cfg80211:   (5250000 KHz - 
5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2400 mBm), (0 s)
| Mar 12 17:35:26 ragnar kernel: [143996.990191] cfg80211:   (5490000 KHz - 
5710000 KHz @ 160000 KHz), (N/A, 2400 mBm), (0 s)
| Mar 12 17:35:26 ragnar kernel: [143996.990193] cfg80211:   (5735000 KHz - 
5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
| Mar 12 17:35:26 ragnar wpa_supplicant[23157]: nl80211: deinit 
ifname=p2p-dev-wlp3s0 disabled_11b_rates=0
| Mar 12 17:35:26 ragnar NetworkManager[23292]: <warn>  Failed to 
GDBus.Error:fi.w1.wpa_supplicant1.NotConnected: This interface is not 
connected: disconnect.
| Mar 12 17:35:26 ragnar dbus[629]: [system] Activating via systemd: service 
name='org.freedesktop.nm_dispatcher' 
unit='dbus-org.freedesktop.nm-dispatcher.service'
| Mar 12 17:35:26 ragnar systemd[1]: Starting Network Manager Script Dispatcher 
Service...
| Mar 12 17:35:26 ragnar dbus[629]: [system] Successfully activated service 
'org.freedesktop.nm_dispatcher'
| Mar 12 17:35:26 ragnar systemd[1]: Started Network Manager Script Dispatcher 
Service.                                                                        
                                                          
| Mar 12 17:35:26 ragnar nm-dispatcher: Dispatching action 'down' for wlp3s0    
                                                                                
                                                                                
               
| Mar 12 17:35:26 ragnar wpa_supplicant[23157]: nl80211: deinit ifname=wlp3s0 
disabled_11b_rates=0                                                            
                                                                                
                 
| Mar 12 17:35:27 ragnar systemd[1]: Reached target Sleep.                      
                                                                                
                                                                                
               
| Mar 12 17:35:27 ragnar systemd[1]: Starting Suspend...                        
                                                                                
                                                                                
               
| Mar 12 17:35:27 ragnar systemd-sleep[11065]: Failed to connect to non-global 
ctrl_ifname: (nil)  error: No such file or directory                            
                                                                                
                
| Mar 12 17:35:27 ragnar systemd-sleep[11069]: 
/lib/systemd/system-sleep/wpasupplicant failed with error code 255.             
                                                                                
                                                
| Mar 12 17:35:27 ragnar systemd-sleep[11065]: Suspending system...             
                                                                                
                                                                                
               
| Mar 12 17:35:27 ragnar kernel: [143997.632123] PM: Syncing filesystems ... 
done.                                                                           
                                                                                
                  
| Mar 12 17:35:27 ragnar kernel: [143997.711724] PM: Preparing system for sleep 
(mem)                                                                           
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143997.712587] Freezing user space processes 
... (elapsed 0.001 seconds) done.                                               
                                                                                
                
| Mar 12 23:01:54 ragnar kernel: [143997.714365] Freezing remaining freezable 
tasks ... (elapsed 0.030 seconds) done.                                         
                                                                                
                 
| Mar 12 23:01:54 ragnar kernel: [143997.745010] PM: Suspending system (mem)    
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143997.745034] Suspending console(s) (use 
no_console_suspend to debug)                                                    
                                                                                
                   
| Mar 12 23:01:54 ragnar kernel: [143997.875608] sd 0:0:0:0: [sda] 
Synchronizing SCSI cache                                                        
                                                                                
                            
| Mar 12 23:01:54 ragnar kernel: [143997.885211] sd 0:0:0:0: [sda] Stopping 
disk                                                                            
                                                                                
                   
| Mar 12 23:01:54 ragnar kernel: [143998.220348] PM: suspend of devices 
complete after 475.140 msecs                                                    
                                                                                
                       
| Mar 12 23:01:54 ragnar kernel: [143998.244328] PM: late suspend of devices 
complete after 23.974 msecs                                                     
                                                                                
                  
| Mar 12 23:01:54 ragnar kernel: [143998.260430] PM: noirq suspend of devices 
complete after 16.095 msecs                                                     
                                                                                
                 
| Mar 12 23:01:54 ragnar kernel: [143998.261175] ACPI: Preparing to enter 
system sleep state S3                                                           
                                                                                
                     
| Mar 12 23:01:54 ragnar kernel: [143998.404256] ACPI : EC: EC stopped          
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.404257] PM: Saving platform NVS memory 
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.404268] Disabling non-boot CPUs ...    
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.406486] Broke affinity for irq 46      
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.407551] smpboot: CPU 1 is now offline  
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.422225] Broke affinity for irq 44      
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.422231] Broke affinity for irq 46      
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.423291] smpboot: CPU 2 is now offline  
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.433286] Broke affinity for irq 1       
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.433292] Broke affinity for irq 8       
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.433296] Broke affinity for irq 9       
                                                                                
                                                                                
               
| Mar 12 23:01:54 ragnar kernel: [143998.433300] Broke affinity for irq 12
| Mar 12 23:01:54 ragnar kernel: [143998.433307] Broke affinity for irq 43
| Mar 12 23:01:54 ragnar kernel: [143998.433312] Broke affinity for irq 44
| Mar 12 23:01:54 ragnar kernel: [143998.433316] Broke affinity for irq 46
| Mar 12 23:01:54 ragnar kernel: [143998.434358] smpboot: CPU 3 is now offline
| Mar 12 23:01:54 ragnar kernel: [143998.450129] ACPI: Low-level resume complete
| Mar 12 23:01:54 ragnar kernel: [143998.450186] ACPI : EC: EC started
| Mar 12 23:01:54 ragnar kernel: [143998.450186] PM: Restoring platform NVS 
memory
| Mar 12 23:01:54 ragnar kernel: [143998.450537] Enabling non-boot CPUs ...
| Mar 12 23:01:54 ragnar kernel: [143998.470034] x86: Booting SMP configuration:
| Mar 12 23:01:54 ragnar kernel: [143998.470035] smpboot: Booting Node 0 
Processor 1 APIC 0x1
| Mar 12 23:01:54 ragnar kernel: [143998.473551]  cache: parent cpu1 should not 
be sleeping
| Mar 12 23:01:54 ragnar kernel: [143998.473636] CPU1 is up
| Mar 12 23:01:54 ragnar kernel: [143998.490052] smpboot: Booting Node 0 
Processor 2 APIC 0x2
| Mar 12 23:01:54 ragnar kernel: [143998.493740]  cache: parent cpu2 should not 
be sleeping
| Mar 12 23:01:54 ragnar kernel: [143998.493828] CPU2 is up
| Mar 12 23:01:54 ragnar kernel: [143998.510082] smpboot: Booting Node 0 
Processor 3 APIC 0x3
| Mar 12 23:01:54 ragnar kernel: [143998.514075]  cache: parent cpu3 should not 
be sleeping
| Mar 12 23:01:54 ragnar kernel: [143998.514161] CPU3 is up
| Mar 12 23:01:54 ragnar kernel: [143998.517245] ACPI: Waking up from system 
sleep state S3
| Mar 12 23:01:54 ragnar kernel: [143998.778588] PM: noirq resume of devices 
complete after 16.647 msecs
| Mar 12 23:01:54 ragnar kernel: [143998.784206] PM: early resume of devices 
complete after 5.595 msecs
| Mar 12 23:01:54 ragnar kernel: [143998.785037] rtc_cmos 00:02: System wakeup 
disabled by ACPI
| Mar 12 23:01:54 ragnar kernel: [143998.798008] sd 0:0:0:0: [sda] Starting disk
| Mar 12 23:01:54 ragnar kernel: [143999.121954] ata1: SATA link up 6.0 Gbps 
(SStatus 133 SControl 300)
| Mar 12 23:01:54 ragnar kernel: [143999.134983] ata1.00: ACPI cmd 
ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
| Mar 12 23:01:54 ragnar kernel: [143999.134986] ata1.00: ACPI cmd 
f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
| Mar 12 23:01:54 ragnar kernel: [143999.137076] ata1.00: ACPI cmd 
ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
| Mar 12 23:01:54 ragnar kernel: [143999.142831] ata1.00: supports DRM 
functions and may not be fully accessible
| Mar 12 23:01:54 ragnar kernel: [143999.164963] ata1.00: ACPI cmd 
ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
| Mar 12 23:01:54 ragnar kernel: [143999.164965] ata1.00: ACPI cmd 
f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
| Mar 12 23:01:54 ragnar kernel: [143999.167061] ata1.00: ACPI cmd 
ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
| Mar 12 23:01:54 ragnar kernel: [143999.172830] ata1.00: supports DRM 
functions and may not be fully accessible
| Mar 12 23:01:54 ragnar kernel: [143999.177961] psmouse serio1: synaptics: 
queried max coordinates: x [..5112], y [..3834]
| Mar 12 23:01:54 ragnar kernel: [143999.182904] ata1.00: configured for 
UDMA/133
| Mar 12 23:01:54 ragnar kernel: [143999.209463] psmouse serio1: synaptics: 
queried min coordinates: x [1024..], y [1024..]
| Mar 12 23:01:54 ragnar kernel: [143999.209466] psmouse serio1: synaptics: 
quirked min/max coordinates: x [1024..5112], y [2024..4832]
| Mar 12 23:01:54 ragnar kernel: [143999.346454] PM: resume of devices complete 
after 562.234 msecs
| Mar 12 23:01:54 ragnar kernel: [143999.346661] PM: Finishing wakeup.
| Mar 12 23:01:54 ragnar systemd[1]: Time has been changed
| Mar 12 23:01:54 ragnar ntpd[909]: Deleting interface #9 wlp3s0, 
192.168.1.39#123, interface stats: received=58, sent=71, dropped=0, 
active_time=11270 secs
| Mar 12 23:01:54 ragnar systemd[1066]: Time has been changed
| Mar 12 23:01:54 ragnar ntpd[909]: 192.168.1.1 local addr 192.168.1.39 -> 
<null>
| Mar 12 23:01:54 ragnar ntpd[909]: 203.14.0.250 local addr 192.168.1.39 -> 
<null>
| Mar 12 23:01:54 ragnar ntpd[909]: 203.14.0.251 local addr 192.168.1.39 -> 
<null>
| Mar 12 23:01:54 ragnar ntpd[909]: 203.12.160.2 local addr 192.168.1.39 -> 
<null>
| Mar 12 23:01:54 ragnar ntpd[909]: 203.0.178.191 local addr 192.168.1.39 -> 
<null>
| Mar 12 23:01:54 ragnar kernel: [143999.346663] Restarting tasks ... done.
| Mar 12 23:01:54 ragnar systemd-sleep[11065]: System resumed.
| Mar 12 23:01:54 ragnar systemd-sleep[11065]: Failed to connect to non-global 
ctrl_ifname: (nil)  error: No such file or directory
| Mar 12 23:01:54 ragnar systemd-sleep[11096]: 
/lib/systemd/system-sleep/wpasupplicant failed with error code 255.
| Mar 12 23:01:54 ragnar systemd[1]: Started Suspend.
| Mar 12 23:01:54 ragnar systemd[1]: sleep.target: Unit not needed anymore. 
Stopping.
| Mar 12 23:01:54 ragnar systemd[1]: Stopped target Sleep.
| Mar 12 23:01:54 ragnar systemd[1]: Reached target Suspend.
| Mar 12 23:01:54 ragnar systemd[1]: suspend.target: Unit is bound to inactive 
unit systemd-suspend.service. Stopping, too.
| Mar 12 23:01:54 ragnar systemd[1]: Stopped target Suspend.
| Mar 12 23:01:54 ragnar NetworkManager[23292]: <info>  wake requested 
(sleeping: yes  enabled: yes)
| Mar 12 23:01:54 ragnar NetworkManager[23292]: <info>  waking up...
| Mar 12 23:01:54 ragnar NetworkManager[23292]: <info>  (wlp3s0): device state 
change: unmanaged -> unavailable (reason 'managed') [10 20 2]
| Mar 12 23:01:54 ragnar kernel: [143999.375795] IPv6: ADDRCONF(NETDEV_UP): 
wlp3s0: link is not ready
| Mar 12 23:01:54 ragnar kernel: [143999.376255] iwlwifi 0000:03:00.0: L1 
Enabled - LTR Enabled
| Mar 12 23:01:54 ragnar kernel: [143999.383076] iwlwifi 0000:03:00.0: L1 
Enabled - LTR Enabled
| Mar 12 23:01:55 ragnar kernel: [143999.585792] iwlwifi 0000:03:00.0: L1 
Enabled - LTR Enabled
| Mar 12 23:01:55 ragnar kernel: [143999.586402] iwlwifi 0000:03:00.0: L1 
Enabled - LTR Enabled
| Mar 12 23:01:55 ragnar NetworkManager[23292]: <info>  NetworkManager state is 
now DISCONNECTED
| Mar 12 23:01:55 ragnar kernel: [143999.608502] IPv6: ADDRCONF(NETDEV_UP): 
wlp3s0: link is not ready
| Mar 12 23:01:55 ragnar wpa_supplicant[23157]: dbus: 
wpa_dbus_get_object_properties: failed to get object properties: (none) none
| Mar 12 23:01:55 ragnar wpa_supplicant[23157]: dbus: Failed to construct signal
| Mar 12 23:01:55 ragnar wpa_supplicant[23157]: Could not read interface 
p2p-dev-wlp3s0 flags: No such device
| Mar 12 23:01:55 ragnar NetworkManager[23292]: <info>  (wlp3s0): supplicant 
interface state: starting -> ready
| Mar 12 23:01:55 ragnar NetworkManager[23292]: <info>  (wlp3s0): device state 
change: unavailable -> disconnected (reason 'supplicant-available') [20 30 42]
| Mar 12 23:01:55 ragnar NetworkManager[23292]: <info>  Device 'wlp3s0' has no 
connection; scheduling activate_check in 0 seconds.
| Mar 12 23:01:55 ragnar kernel: [143999.651877] IPv6: ADDRCONF(NETDEV_UP): 
wlp3s0: link is not ready
| Mar 12 23:01:58 ragnar NetworkManager[23292]: <info>  (wlp3s0): supplicant 
interface state: ready -> inactive

Where "Mar 12 17:35:26" is about when I suspended, and "Mar 12 23:01:54"
is around when I resumed.

** Tags added: apport-collected

** Description changed:

  Hi,
  
  I'm constantly having issues where my WiFi connection doesn't re-
  establish after resuming from suspend. I think it may be a race where
  the interface isn't ready yet and systemd-sleep calls /lib/systemd
  /system-sleep/wpasupplicant (which is a wrapper to wpa_cli).
  
  I normally restart NetworkManager but then found that calling 'wpa_cli
  resume' works also.
  
  Here's the logs:
  
  | Mar 12 13:53:06 ragnar.local kernel: psmouse serio1: synaptics: quirked 
min/max coordinates: x [1024..5112], y [2024..4832]
  | Mar 12 13:53:06 ragnar.local kernel: PM: resume of devices complete after 
562.709 msecs
  | Mar 12 13:53:06 ragnar.local kernel: PM: Finishing wakeup.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Time has been changed
  | Mar 12 13:53:06 ragnar.local systemd[1066]: Time has been changed
  | Mar 12 13:53:06 ragnar.local kernel: Restarting tasks ... done.
  | Mar 12 13:53:06 ragnar.local systemd-sleep[29174]: System resumed.
  | Mar 12 13:53:06 ragnar.local systemd-sleep[29174]: Failed to connect to 
non-global ctrl_ifname: (nil)  error: No such file or directory
  | Mar 12 13:53:06 ragnar.local systemd-sleep[29227]: 
/lib/systemd/system-sleep/wpasupplicant failed with error code 255.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Started Suspend.
  | Mar 12 13:53:06 ragnar.local systemd[1]: sleep.target: Unit not needed 
anymore. Stopping.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Stopped target Sleep.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Reached target Suspend.
  | Mar 12 13:53:06 ragnar.local systemd[1]: suspend.target: Unit is bound to 
inactive unit systemd-suspend.service. Stopping, too.
  | Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info>  wake requested 
(sleeping: yes  enabled: yes)
  | Mar 12 13:53:06 ragnar.local systemd[1]: Stopped target Suspend.
  | Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info>  waking up...
  | Mar 12 13:53:06 ragnar.local systemd-logind[662]: Operation 'sleep' 
finished.
  | Mar 12 13:53:06 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: 
link is not ready
  | Mar 12 13:53:06 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info>  (wlp3s0): 
device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
  | Mar 12 13:53:06 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:07 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:07 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  NetworkManager 
state is now DISCONNECTED
  | Mar 12 13:53:07 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: 
link is not ready
  | Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: dbus: 
wpa_dbus_get_object_properties: failed to get object properties: (none) none
  | Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: dbus: Failed to 
construct signal
  | Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: Could not read 
interface p2p-dev-wlp3s0 flags: No such device
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  (wlp3s0): 
supplicant interface state: starting -> ready
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  (wlp3s0): 
device state change: unavailable -> disconnected (reason 
'supplicant-available') [20 30 42]
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  Device 'wlp3s0' 
has no connection; scheduling activate_check in 0 seconds.
  | Mar 12 13:53:07 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: 
link is not ready
  
  
  Thanks,
  
  Haw
+ --- 
+ ApportVersion: 2.20-0ubuntu3
+ Architecture: amd64
+ CurrentDesktop: Unity
+ DistroRelease: Ubuntu 16.04
+ IfupdownConfig:
+  # interfaces(5) file used by ifup(8) and ifdown(8)
+  auto lo
+  iface lo inet loopback
+ InstallationDate: Installed on 2014-04-24 (687 days ago)
+ InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
+ Package: wpasupplicant
+ PackageArchitecture: amd64
+ ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4
+ RfKill: Error: [Errno 2] No such file or directory
+ Tags:  xenial
+ Uname: Linux 4.4.0-11-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dialout dip lpadmin plugdev sudo users
+ _MarkForUpload: True
+ modified.conffile..etc.NetworkManager.NetworkManager.conf: [modified]
+ modified.conffile..etc.dnsmasq.d.network.manager: [modified]
+ mtime.conffile..etc.NetworkManager.NetworkManager.conf: 
2015-09-12T15:03:20.815898
+ mtime.conffile..etc.dnsmasq.d.network.manager: 2014-07-29T22:12:51.096293
+ nmcli-con:
+  NAME        UUID                                  TYPE             TIMESTAMP 
  TIMESTAMP-REAL                    AUTOCONNECT  AUTOCONNECT-PRIORITY  READONLY 
 DBUS-PATH                                   ACTIVE  DEVICE  STATE      
ACTIVE-PATH                                         
+  hld-2.4GHz  deffb41a-c707-4088-a887-36d63f43a6a0  802-11-wireless  
1457784347  Sat 12 Mar 2016 11:05:47 PM AEDT  yes          0                    
 no        /org/freedesktop/NetworkManager/Settings/0  yes     wlp3s0  
activated  /org/freedesktop/NetworkManager/ActiveConnection/12
+ nmcli-dev:
+  DEVICE  TYPE      STATE      DBUS-PATH                                  
CONNECTION  CON-UUID                              CON-PATH                      
                      
+  wlp3s0  wifi      connected  /org/freedesktop/NetworkManager/Devices/0  
hld-2.4GHz  deffb41a-c707-4088-a887-36d63f43a6a0  
/org/freedesktop/NetworkManager/ActiveConnection/12 
+  lo      loopback  unmanaged  /org/freedesktop/NetworkManager/Devices/1  --   
       --                                    --
+ nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 
2: Error: Object 'nm' is unknown, try 'nmcli help'.

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https://bugs.launchpad.net/bugs/1556357

Title:
  WiFi fails to resume after suspend; Race with wpasupplicant / wpa_cli
  resume?

Status in network-manager package in Ubuntu:
  New
Status in wpasupplicant package in Ubuntu:
  New

Bug description:
  Hi,

  I'm constantly having issues where my WiFi connection doesn't re-
  establish after resuming from suspend. I think it may be a race where
  the interface isn't ready yet and systemd-sleep calls /lib/systemd
  /system-sleep/wpasupplicant (which is a wrapper to wpa_cli).

  I normally restart NetworkManager but then found that calling 'wpa_cli
  resume' works also.

  Here's the logs:

  | Mar 12 13:53:06 ragnar.local kernel: psmouse serio1: synaptics: quirked 
min/max coordinates: x [1024..5112], y [2024..4832]
  | Mar 12 13:53:06 ragnar.local kernel: PM: resume of devices complete after 
562.709 msecs
  | Mar 12 13:53:06 ragnar.local kernel: PM: Finishing wakeup.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Time has been changed
  | Mar 12 13:53:06 ragnar.local systemd[1066]: Time has been changed
  | Mar 12 13:53:06 ragnar.local kernel: Restarting tasks ... done.
  | Mar 12 13:53:06 ragnar.local systemd-sleep[29174]: System resumed.
  | Mar 12 13:53:06 ragnar.local systemd-sleep[29174]: Failed to connect to 
non-global ctrl_ifname: (nil)  error: No such file or directory
  | Mar 12 13:53:06 ragnar.local systemd-sleep[29227]: 
/lib/systemd/system-sleep/wpasupplicant failed with error code 255.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Started Suspend.
  | Mar 12 13:53:06 ragnar.local systemd[1]: sleep.target: Unit not needed 
anymore. Stopping.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Stopped target Sleep.
  | Mar 12 13:53:06 ragnar.local systemd[1]: Reached target Suspend.
  | Mar 12 13:53:06 ragnar.local systemd[1]: suspend.target: Unit is bound to 
inactive unit systemd-suspend.service. Stopping, too.
  | Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info>  wake requested 
(sleeping: yes  enabled: yes)
  | Mar 12 13:53:06 ragnar.local systemd[1]: Stopped target Suspend.
  | Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info>  waking up...
  | Mar 12 13:53:06 ragnar.local systemd-logind[662]: Operation 'sleep' 
finished.
  | Mar 12 13:53:06 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: 
link is not ready
  | Mar 12 13:53:06 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:06 ragnar.local NetworkManager[23292]: <info>  (wlp3s0): 
device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
  | Mar 12 13:53:06 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:07 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:07 ragnar.local kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR 
Enabled
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  NetworkManager 
state is now DISCONNECTED
  | Mar 12 13:53:07 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: 
link is not ready
  | Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: dbus: 
wpa_dbus_get_object_properties: failed to get object properties: (none) none
  | Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: dbus: Failed to 
construct signal
  | Mar 12 13:53:07 ragnar.local wpa_supplicant[23157]: Could not read 
interface p2p-dev-wlp3s0 flags: No such device
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  (wlp3s0): 
supplicant interface state: starting -> ready
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  (wlp3s0): 
device state change: unavailable -> disconnected (reason 
'supplicant-available') [20 30 42]
  | Mar 12 13:53:07 ragnar.local NetworkManager[23292]: <info>  Device 'wlp3s0' 
has no connection; scheduling activate_check in 0 seconds.
  | Mar 12 13:53:07 ragnar.local kernel: IPv6: ADDRCONF(NETDEV_UP): wlp3s0: 
link is not ready


  Thanks,

  Haw
  --- 
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2014-04-24 (687 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  Package: wpasupplicant
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 4.4.0-11.26-generic 4.4.4
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  xenial
  Uname: Linux 4.4.0-11-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dialout dip lpadmin plugdev sudo users
  _MarkForUpload: True
  modified.conffile..etc.NetworkManager.NetworkManager.conf: [modified]
  modified.conffile..etc.dnsmasq.d.network.manager: [modified]
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 
2015-09-12T15:03:20.815898
  mtime.conffile..etc.dnsmasq.d.network.manager: 2014-07-29T22:12:51.096293
  nmcli-con:
   NAME        UUID                                  TYPE             TIMESTAMP 
  TIMESTAMP-REAL                    AUTOCONNECT  AUTOCONNECT-PRIORITY  READONLY 
 DBUS-PATH                                   ACTIVE  DEVICE  STATE      
ACTIVE-PATH                                         
   hld-2.4GHz  deffb41a-c707-4088-a887-36d63f43a6a0  802-11-wireless  
1457784347  Sat 12 Mar 2016 11:05:47 PM AEDT  yes          0                    
 no        /org/freedesktop/NetworkManager/Settings/0  yes     wlp3s0  
activated  /org/freedesktop/NetworkManager/ActiveConnection/12
  nmcli-dev:
   DEVICE  TYPE      STATE      DBUS-PATH                                  
CONNECTION  CON-UUID                              CON-PATH                      
                      
   wlp3s0  wifi      connected  /org/freedesktop/NetworkManager/Devices/0  
hld-2.4GHz  deffb41a-c707-4088-a887-36d63f43a6a0  
/org/freedesktop/NetworkManager/ActiveConnection/12 
   lo      loopback  unmanaged  /org/freedesktop/NetworkManager/Devices/1  --   
       --                                    --
  nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 
2: Error: Object 'nm' is unknown, try 'nmcli help'.

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