Public bug reported:

Issue began after installing (clean) Ubuntu 19.10.
network-manager:
  Installed: 1.20.4-2ubuntu2


Anytime I disconnect from my VPN service, I lose network connectivity.
When looking at Settings, I no longer see any WLAN/WiFi hardware.  To
work around this, I must either restart the computer or restart the
NetworkManager service.

Here is the syslog output beginning from when I disconnect from the VPN
service:

Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.6055] 
device (tun0): state change: activated -> unmanaged (reason 'unmanaged', 
sys-iface-state: 'removed')
Dec  7 05:48:01 hostname gnome-shell[27723]: Removing a network device that was 
not added
Dec  7 05:48:01 hostname dbus-daemon[751]: [system] Activating via systemd: 
service name='org.freedesktop.nm_dispatcher' 
unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.8785' (uid=0 
pid=10146 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Dec  7 05:48:01 hostname systemd[1]: Starting Network Manager Script Dispatcher 
Service...
Dec  7 05:48:01 hostname dnsmasq[2171]: reading /etc/resolv.conf
Dec  7 05:48:01 hostname dnsmasq[2171]: using nameserver 127.0.0.53#53
Dec  7 05:48:01 hostname dbus-daemon[751]: [system] Successfully activated 
service 'org.freedesktop.nm_dispatcher'
Dec  7 05:48:01 hostname systemd[1]: Started Network Manager Script Dispatcher 
Service.
Dec  7 05:48:01 hostname gnome-shell[27723]: JS ERROR: TypeError: 
connectionSettings is 
null#012_updateConnection@resource:///org/gnome/shell/ui/status/network.js:1922:9
Dec  7 05:48:01 hostname systemd-resolved[714]: Flushed all caches.
Dec  7 05:48:01 hostname avahi-daemon[790]: Joining mDNS multicast group on 
interface lo.IPv6 with address ::1.
Dec  7 05:48:01 hostname avahi-daemon[790]: New relevant interface lo.IPv6 for 
mDNS.
Dec  7 05:48:01 hostname avahi-daemon[790]: Registering new address record for 
::1 on lo.*.
Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9239] 
manager: disable requested (sleeping: no  enabled: yes)
Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9240] 
device (p2p-dev-wlp58s0): state change: disconnected -> unmanaged (reason 
'sleeping', sys-iface-state: 'managed')
Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9247] 
manager: NetworkManager state is now ASLEEP
Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9253] 
audit: op="networking-control" arg="off" pid=12063 uid=0 result="success"
Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9254] 
device (wlp58s0): state change: activated -> deactivating (reason 'sleeping', 
sys-iface-state: 'managed')
Dec  7 05:48:01 hostname systemd-resolved[714]: Got packet on unexpected IP 
range, refusing.
Dec  7 05:48:01 hostname kernel: [436979.950637] wlp58s0: deauthenticating from 
40:f4:ec:13:53:af by local choice (Reason: 3=DEAUTH_LEAVING)
Dec  7 05:48:01 hostname systemd-resolved[714]: Got packet on unexpected IP 
range, refusing.
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0071] 
manager: enable requested (sleeping: no  enabled: no)
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0072] 
device (p2p-dev-wlp58s0): state change: unmanaged -> unavailable (reason 
'managed', sys-iface-state: 'managed')
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0096] 
manager: NetworkManager state is now DISCONNECTING
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0111] 
audit: op="networking-control" arg="on" pid=12068 uid=0 result="success"
Dec  7 05:48:02 hostname wpa_supplicant[758]: wlp58s0: CTRL-EVENT-DISCONNECTED 
bssid=40:f4:ec:13:53:af reason=3 locally_generated=1
Dec  7 05:48:02 hostname wpa_supplicant[758]: dbus: wpa_dbus_property_changed: 
no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/4
Dec  7 05:48:02 hostname wpa_supplicant[758]: wlp58s0: CTRL-EVENT-REGDOM-CHANGE 
init=CORE type=WORLD
Dec  7 05:48:02 hostname NetworkManager[10146]: <warn>  [1575686882.0481] 
sup-iface[0x55a4c662b910,wlp58s0]: connection disconnected (reason -3)
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0482] 
device (wlp58s0): supplicant interface state: completed -> disconnected
Dec  7 05:48:02 hostname gnome-shell[27723]: An active wireless connection, in 
infrastructure mode, involves no access point?
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0731] 
device (wlp58s0): state change: deactivating -> disconnected (reason 
'sleeping', sys-iface-state: 'managed')
Dec  7 05:48:02 hostname avahi-daemon[790]: Withdrawing address record for 
fe80::9eb6:d0ff:fed1:f2cb on wlp58s0.
Dec  7 05:48:02 hostname avahi-daemon[790]: Leaving mDNS multicast group on 
interface wlp58s0.IPv6 with address fe80::9eb6:d0ff:fed1:f2cb.
Dec  7 05:48:02 hostname avahi-daemon[790]: Interface wlp58s0.IPv6 no longer 
relevant for mDNS.
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0771] dhcp4 
(wlp58s0): canceled DHCP transaction
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0773] dhcp4 
(wlp58s0): state changed bound -> done
Dec  7 05:48:02 hostname avahi-daemon[790]: Withdrawing address record for 
10.153.3.172 on wlp58s0.
Dec  7 05:48:02 hostname avahi-daemon[790]: Leaving mDNS multicast group on 
interface wlp58s0.IPv4 with address 10.153.3.172.
Dec  7 05:48:02 hostname avahi-daemon[790]: Interface wlp58s0.IPv4 no longer 
relevant for mDNS.
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0905] 
manager: NetworkManager state is now DISCONNECTED
Dec  7 05:48:02 hostname dnsmasq[2171]: reading /etc/resolv.conf
Dec  7 05:48:02 hostname dnsmasq[2171]: using nameserver 127.0.0.53#53
Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0997] 
device (wlp58s0): state change: disconnected -> unmanaged (reason 'sleeping', 
sys-iface-state: 'managed')
Dec  7 05:48:02 hostname wpa_supplicant[758]: wlp58s0: CTRL-EVENT-SCAN-FAILED 
ret=-100
Dec  7 05:48:02 hostname gsd-sharing[27956]: Failed to StopUnit service: 
GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit 
gnome-user-share-webdav.service not loaded.
Dec  7 05:48:02 hostname gsd-sharing[27956]: Failed to StopUnit service: 
GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit 
gnome-remote-desktop.service not loaded.
Dec  7 05:48:02 hostname gsd-sharing[27956]: Failed to StopUnit service: 
GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit vino-server.service not 
loaded.
Dec  7 05:48:02 hostname wpa_supplicant[758]: nl80211: deinit 
ifname=p2p-dev-wlp58s0 disabled_11b_rates=0
Dec  7 05:48:02 hostname wpa_supplicant[758]: nl80211: deinit ifname=wlp58s0 
disabled_11b_rates=0
Dec  7 05:48:06 hostname whoopsie[988]: [05:48:06] Cannot reach: 
https://daisy.ubuntu.com
Dec  7 05:48:06 hostname whoopsie[988]: [05:48:06] offline
Dec  7 05:48:12 hostname systemd[1]: NetworkManager-dispatcher.service: 
Succeeded.
Dec  7 05:48:26 hostname xdg-desktop-por[13000]: Failed to get application 
states: GDBus.Error:org.freedesktop.portal.Error.Failed: Could not get window 
list: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: App introspection 
not allowed

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: network-manager 1.20.4-2ubuntu2
ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
Uname: Linux 5.3.0-23-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
Date: Sat Dec  7 05:43:13 2019
ExecutablePath: /usr/sbin/NetworkManager
InstallationDate: Installed on 2019-10-26 (41 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=false
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 
2019-12-02T03:59:31.973542
nmcli-nm:
 RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  WIFI  
   WWAN-HW  WWAN     
 running  1.20.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

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


** Tags: amd64 apport-bug eoan

-- 
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https://bugs.launchpad.net/bugs/1855511

Title:
  WLAN hardware no longer detected after disconnecting VPN

Status in network-manager package in Ubuntu:
  New

Bug description:
  Issue began after installing (clean) Ubuntu 19.10.
  network-manager:
    Installed: 1.20.4-2ubuntu2


  Anytime I disconnect from my VPN service, I lose network connectivity.
  When looking at Settings, I no longer see any WLAN/WiFi hardware.  To
  work around this, I must either restart the computer or restart the
  NetworkManager service.

  Here is the syslog output beginning from when I disconnect from the
  VPN service:

  Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.6055] 
device (tun0): state change: activated -> unmanaged (reason 'unmanaged', 
sys-iface-state: 'removed')
  Dec  7 05:48:01 hostname gnome-shell[27723]: Removing a network device that 
was not added
  Dec  7 05:48:01 hostname dbus-daemon[751]: [system] Activating via systemd: 
service name='org.freedesktop.nm_dispatcher' 
unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.8785' (uid=0 
pid=10146 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
  Dec  7 05:48:01 hostname systemd[1]: Starting Network Manager Script 
Dispatcher Service...
  Dec  7 05:48:01 hostname dnsmasq[2171]: reading /etc/resolv.conf
  Dec  7 05:48:01 hostname dnsmasq[2171]: using nameserver 127.0.0.53#53
  Dec  7 05:48:01 hostname dbus-daemon[751]: [system] Successfully activated 
service 'org.freedesktop.nm_dispatcher'
  Dec  7 05:48:01 hostname systemd[1]: Started Network Manager Script 
Dispatcher Service.
  Dec  7 05:48:01 hostname gnome-shell[27723]: JS ERROR: TypeError: 
connectionSettings is 
null#012_updateConnection@resource:///org/gnome/shell/ui/status/network.js:1922:9
  Dec  7 05:48:01 hostname systemd-resolved[714]: Flushed all caches.
  Dec  7 05:48:01 hostname avahi-daemon[790]: Joining mDNS multicast group on 
interface lo.IPv6 with address ::1.
  Dec  7 05:48:01 hostname avahi-daemon[790]: New relevant interface lo.IPv6 
for mDNS.
  Dec  7 05:48:01 hostname avahi-daemon[790]: Registering new address record 
for ::1 on lo.*.
  Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9239] 
manager: disable requested (sleeping: no  enabled: yes)
  Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9240] 
device (p2p-dev-wlp58s0): state change: disconnected -> unmanaged (reason 
'sleeping', sys-iface-state: 'managed')
  Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9247] 
manager: NetworkManager state is now ASLEEP
  Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9253] 
audit: op="networking-control" arg="off" pid=12063 uid=0 result="success"
  Dec  7 05:48:01 hostname NetworkManager[10146]: <info>  [1575686881.9254] 
device (wlp58s0): state change: activated -> deactivating (reason 'sleeping', 
sys-iface-state: 'managed')
  Dec  7 05:48:01 hostname systemd-resolved[714]: Got packet on unexpected IP 
range, refusing.
  Dec  7 05:48:01 hostname kernel: [436979.950637] wlp58s0: deauthenticating 
from 40:f4:ec:13:53:af by local choice (Reason: 3=DEAUTH_LEAVING)
  Dec  7 05:48:01 hostname systemd-resolved[714]: Got packet on unexpected IP 
range, refusing.
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0071] 
manager: enable requested (sleeping: no  enabled: no)
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0072] 
device (p2p-dev-wlp58s0): state change: unmanaged -> unavailable (reason 
'managed', sys-iface-state: 'managed')
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0096] 
manager: NetworkManager state is now DISCONNECTING
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0111] 
audit: op="networking-control" arg="on" pid=12068 uid=0 result="success"
  Dec  7 05:48:02 hostname wpa_supplicant[758]: wlp58s0: 
CTRL-EVENT-DISCONNECTED bssid=40:f4:ec:13:53:af reason=3 locally_generated=1
  Dec  7 05:48:02 hostname wpa_supplicant[758]: dbus: 
wpa_dbus_property_changed: no property SessionLength in object 
/fi/w1/wpa_supplicant1/Interfaces/4
  Dec  7 05:48:02 hostname wpa_supplicant[758]: wlp58s0: 
CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
  Dec  7 05:48:02 hostname NetworkManager[10146]: <warn>  [1575686882.0481] 
sup-iface[0x55a4c662b910,wlp58s0]: connection disconnected (reason -3)
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0482] 
device (wlp58s0): supplicant interface state: completed -> disconnected
  Dec  7 05:48:02 hostname gnome-shell[27723]: An active wireless connection, 
in infrastructure mode, involves no access point?
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0731] 
device (wlp58s0): state change: deactivating -> disconnected (reason 
'sleeping', sys-iface-state: 'managed')
  Dec  7 05:48:02 hostname avahi-daemon[790]: Withdrawing address record for 
fe80::9eb6:d0ff:fed1:f2cb on wlp58s0.
  Dec  7 05:48:02 hostname avahi-daemon[790]: Leaving mDNS multicast group on 
interface wlp58s0.IPv6 with address fe80::9eb6:d0ff:fed1:f2cb.
  Dec  7 05:48:02 hostname avahi-daemon[790]: Interface wlp58s0.IPv6 no longer 
relevant for mDNS.
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0771] 
dhcp4 (wlp58s0): canceled DHCP transaction
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0773] 
dhcp4 (wlp58s0): state changed bound -> done
  Dec  7 05:48:02 hostname avahi-daemon[790]: Withdrawing address record for 
10.153.3.172 on wlp58s0.
  Dec  7 05:48:02 hostname avahi-daemon[790]: Leaving mDNS multicast group on 
interface wlp58s0.IPv4 with address 10.153.3.172.
  Dec  7 05:48:02 hostname avahi-daemon[790]: Interface wlp58s0.IPv4 no longer 
relevant for mDNS.
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0905] 
manager: NetworkManager state is now DISCONNECTED
  Dec  7 05:48:02 hostname dnsmasq[2171]: reading /etc/resolv.conf
  Dec  7 05:48:02 hostname dnsmasq[2171]: using nameserver 127.0.0.53#53
  Dec  7 05:48:02 hostname NetworkManager[10146]: <info>  [1575686882.0997] 
device (wlp58s0): state change: disconnected -> unmanaged (reason 'sleeping', 
sys-iface-state: 'managed')
  Dec  7 05:48:02 hostname wpa_supplicant[758]: wlp58s0: CTRL-EVENT-SCAN-FAILED 
ret=-100
  Dec  7 05:48:02 hostname gsd-sharing[27956]: Failed to StopUnit service: 
GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit 
gnome-user-share-webdav.service not loaded.
  Dec  7 05:48:02 hostname gsd-sharing[27956]: Failed to StopUnit service: 
GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit 
gnome-remote-desktop.service not loaded.
  Dec  7 05:48:02 hostname gsd-sharing[27956]: Failed to StopUnit service: 
GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit vino-server.service not 
loaded.
  Dec  7 05:48:02 hostname wpa_supplicant[758]: nl80211: deinit 
ifname=p2p-dev-wlp58s0 disabled_11b_rates=0
  Dec  7 05:48:02 hostname wpa_supplicant[758]: nl80211: deinit ifname=wlp58s0 
disabled_11b_rates=0
  Dec  7 05:48:06 hostname whoopsie[988]: [05:48:06] Cannot reach: 
https://daisy.ubuntu.com
  Dec  7 05:48:06 hostname whoopsie[988]: [05:48:06] offline
  Dec  7 05:48:12 hostname systemd[1]: NetworkManager-dispatcher.service: 
Succeeded.
  Dec  7 05:48:26 hostname xdg-desktop-por[13000]: Failed to get application 
states: GDBus.Error:org.freedesktop.portal.Error.Failed: Could not get window 
list: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: App introspection 
not allowed

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: network-manager 1.20.4-2ubuntu2
  ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
  Uname: Linux 5.3.0-23-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8.2
  Architecture: amd64
  Date: Sat Dec  7 05:43:13 2019
  ExecutablePath: /usr/sbin/NetworkManager
  InstallationDate: Installed on 2019-10-26 (41 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 
2019-12-02T03:59:31.973542
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN     
   running  1.20.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

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