Public bug reported:

First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
Here is the issue:
Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected (but through the manual way).
By the way, during the period of the wifi disconnection, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, 
but I found that there was only one SSID which previously the laptop connected 
to. However, I was definitely sure that there should be more than one SSID 
being showed in the wifi list. Even for this only one SSID, like I mentioned 
above, I cannot reconnect manually unless I reboot the system.
Finally, I set the wifi to be connected automatically if I login to the system, 
however, it just can't. I can only to manually connect the wifi after I login 
to the account.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: network-manager 1.10.4-1ubuntu3
ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
Uname: Linux 4.15.0-13-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.9-0ubuntu1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Mar 24 19:02:12 2018
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2018-01-15 (68 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
IpRoute:
 default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
 169.254.0.0/16 dev wlp4s0 scope link metric 1000
 172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=false
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
 wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
 enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  --   
             --                                    --
 lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  --   
             --                                    --
nmcli-nm:
 RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  WIFI  
   WWAN-HW  WWAN
 running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

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


** Tags: amd64 apport-bug bionic

** Description changed:

- First of all, I am not sure whether it's true that this is a bug of 
network-manager.
+ First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it is a bug related with network (wifi 
connection)
  Here is the issue:
- Every time when I login into the account, then after about 20 minutes, the 
wifi will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected. 
+ Every time when I login into the account, then after about 20 minutes, the 
wifi will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected.
  By the way, during the period after wifi disconnected, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
-  # interfaces(5) file used by ifup(8) and ifdown(8)
-  auto lo
-  iface lo inet loopback
+  # interfaces(5) file used by ifup(8) and ifdown(8)
+  auto lo
+  iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
-  default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600 
-  169.254.0.0/16 dev wlp4s0 scope link metric 1000 
-  172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
+  default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
+  169.254.0.0/16 dev wlp4s0 scope link metric 1000
+  172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
-  [main]
-  NetworkingEnabled=true
-  WirelessEnabled=true
-  WWANEnabled=false
+  [main]
+  NetworkingEnabled=true
+  WirelessEnabled=true
+  WWANEnabled=false
  RfKill:
-  0: phy0: Wireless LAN
-       Soft blocked: no
-       Hard blocked: no
+  0: phy0: Wireless LAN
+   Soft blocked: no
+   Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
-  DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH                
                           
-  wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5 
-  enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --                         
                        
-  lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
+  DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
+  wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
+  enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
+  lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
-  RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN     
-  running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled
+  RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
+  running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

- First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it is a bug related with network (wifi 
connection)
+ First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
  Every time when I login into the account, then after about 20 minutes, the 
wifi will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected.
  By the way, during the period after wifi disconnected, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
- Every time when I login into the account, then after about 20 minutes, the 
wifi will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected.
+ Every time when I login into the account, after about 20 minutes, the wifi 
will be disconnected automatically. I even cannot reconnect the wifi manually, 
the only thing that I can do is to reboot the laptop. After login again, wifi 
can be connected.
  By the way, during the period after wifi disconnected, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
- Every time when I login into the account, after about 20 minutes, the wifi 
will be disconnected automatically. I even cannot reconnect the wifi manually, 
the only thing that I can do is to reboot the laptop. After login again, wifi 
can be connected.
+ Every time after I login into the account, about 20 minutes later, the wifi 
will be disconnected automatically. I even cannot reconnect the wifi manually, 
the only thing that I can do is to reboot the laptop. After login again, wifi 
can be connected.
  By the way, during the period after wifi disconnected, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
- Every time after I login into the account, about 20 minutes later, the wifi 
will be disconnected automatically. I even cannot reconnect the wifi manually, 
the only thing that I can do is to reboot the laptop. After login again, wifi 
can be connected.
+ Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected.
  By the way, during the period after wifi disconnected, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
- Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected.
+ Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected (but through the manual way).
  By the way, during the period after wifi disconnected, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
  Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected (but through the manual way).
- By the way, during the period after wifi disconnected, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
+ By the way, during the period of the wifi disconnection, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
  Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected (but through the manual way).
- By the way, during the period of the wifi disconnection, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, I 
found that there is only one SSID which previously the laptop connected to. 
However, I was definitely sure that there should be more than one SSID being 
showed in the wifi list. Even for this only one SSID, like I mentioned above, I 
cannot reconnect manually unless I reboot the system.
+ By the way, during the period of the wifi disconnection, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, 
but I found that there is only one SSID which previously the laptop connected 
to. However, I was definitely sure that there should be more than one SSID 
being showed in the wifi list. Even for this only one SSID, like I mentioned 
above, I cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

** Description changed:

  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
  Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected (but through the manual way).
- By the way, during the period of the wifi disconnection, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, 
but I found that there is only one SSID which previously the laptop connected 
to. However, I was definitely sure that there should be more than one SSID 
being showed in the wifi list. Even for this only one SSID, like I mentioned 
above, I cannot reconnect manually unless I reboot the system.
+ By the way, during the period of the wifi disconnection, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, 
but I found that there was only one SSID which previously the laptop connected 
to. However, I was definitely sure that there should be more than one SSID 
being showed in the wifi list. Even for this only one SSID, like I mentioned 
above, I cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to network-manager in Ubuntu.
https://bugs.launchpad.net/bugs/1758589

Title:
  The wifi will be disconnected and the only thing I can do is to reboot
  the laptop

Status in network-manager package in Ubuntu:
  New

Bug description:
  First of all, I am not sure whether it's true that this is a bug of 
network-manager, but it's true that it should be a bug related with network 
(wifi connection)
  Here is the issue:
  Every time after I login into the account, about 20 minutes later, the wifi 
connection will be disconnected automatically. I even cannot reconnect the wifi 
manually, the only thing that I can do is to reboot the laptop. After login 
again, wifi can be connected (but through the manual way).
  By the way, during the period of the wifi disconnection, I checked the "Wi-Fi 
Networks" by click "Select Network" in order to try to reconnect it manually, 
but I found that there was only one SSID which previously the laptop connected 
to. However, I was definitely sure that there should be more than one SSID 
being showed in the wifi list. Even for this only one SSID, like I mentioned 
above, I cannot reconnect manually unless I reboot the system.
  Finally, I set the wifi to be connected automatically if I login to the 
system, however, it just can't. I can only to manually connect the wifi after I 
login to the account.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: network-manager 1.10.4-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.9-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar 24 19:02:12 2018
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2018-01-15 (68 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  IpRoute:
   default via 172.24.16.1 dev wlp4s0 proto dhcp metric 600
   169.254.0.0/16 dev wlp4s0 scope link metric 1000
   172.24.16.0/20 dev wlp4s0 proto kernel scope link src 172.24.16.69 metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  
CONNECTION        CON-UUID                              CON-PATH
   wlp4s0  wifi      connected    /org/freedesktop/NetworkManager/Devices/3  
WolfieNet-Secure  eb45c742-ba31-4f31-acf2-13a2768bcc29  
/org/freedesktop/NetworkManager/ActiveConnection/5
   enp5s0  ethernet  unavailable  /org/freedesktop/NetworkManager/Devices/2  -- 
               --                                    --
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  -- 
               --                                    --
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  
WIFI     WWAN-HW  WWAN
   running  1.10.4   connected  started  full          enabled     enabled  
enabled  enabled  disabled

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1758589/+subscriptions

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