Can't connect to WiFi with “Connection activation failed” error after upgrade from 14.04 -> 15.04












1














I recently upgraded from 14.04 to 14.10 to 15.04 in succession. I lost internet capabilities each time, thanks to my having to use a Realtek WiFi dongle.



I was able to resolve those issues both times, but I now have this whenever I try to connect to a network by clicking on the option under the Network Manager applet:



enter image description here



I can connect when manually adding the network, but clicking on an option in the applet gives me the above error message.



I've tried reinstalling network-manager, network-manager-gnome, and wpasupplicant, but that didn't help.



EDIT: Something of note, I get a popup whenever I get to the login screen after rebooting asking me to put in the network password.



This makes me think there's something messed up in something that's creating the configuration files for the network, since it isn't saving the password.



However, I don't know what that would be.



EDIT 2: Another thing of note, if I try to connect to a network I've never connected to before, it just closes the menu and nothing happens the first time. However, if I click after that, it brings up the error.










share|improve this question
























  • Did you simply reinstall or purge? I suspect a bad setting resides somewhere in /etc/NetworkManager. You might try sudo apt-get purge; reboot; sudo apt-get install.
    – chili555
    Jul 27 '15 at 13:09










  • @chili555 I downloaded the packages via sudo apt-get -d --reinstall network-manager network-manager-gnome wpasupplicant, then ran sudo apt-get purge network-manager network-manager-gnome wpasupplicant then sudo apt-get install network-manager network-manager-gnome wpasupplicant.
    – RPiAwesomeness
    Jul 27 '15 at 14:14












  • Please see: bbs.archlinux.org/viewtopic.php?id=193839 "The fix for me was going into the /etc/NetworkManager/NetworkManager.conf file and removing the dhcp=dhcpcd line. "
    – chili555
    Jul 27 '15 at 14:22










  • @chili555 There isn't any such line in my file. Tried adding it and sudo service network-manager restart-ing, no change.
    – RPiAwesomeness
    Jul 27 '15 at 14:26
















1














I recently upgraded from 14.04 to 14.10 to 15.04 in succession. I lost internet capabilities each time, thanks to my having to use a Realtek WiFi dongle.



I was able to resolve those issues both times, but I now have this whenever I try to connect to a network by clicking on the option under the Network Manager applet:



enter image description here



I can connect when manually adding the network, but clicking on an option in the applet gives me the above error message.



I've tried reinstalling network-manager, network-manager-gnome, and wpasupplicant, but that didn't help.



EDIT: Something of note, I get a popup whenever I get to the login screen after rebooting asking me to put in the network password.



This makes me think there's something messed up in something that's creating the configuration files for the network, since it isn't saving the password.



However, I don't know what that would be.



EDIT 2: Another thing of note, if I try to connect to a network I've never connected to before, it just closes the menu and nothing happens the first time. However, if I click after that, it brings up the error.










share|improve this question
























  • Did you simply reinstall or purge? I suspect a bad setting resides somewhere in /etc/NetworkManager. You might try sudo apt-get purge; reboot; sudo apt-get install.
    – chili555
    Jul 27 '15 at 13:09










  • @chili555 I downloaded the packages via sudo apt-get -d --reinstall network-manager network-manager-gnome wpasupplicant, then ran sudo apt-get purge network-manager network-manager-gnome wpasupplicant then sudo apt-get install network-manager network-manager-gnome wpasupplicant.
    – RPiAwesomeness
    Jul 27 '15 at 14:14












  • Please see: bbs.archlinux.org/viewtopic.php?id=193839 "The fix for me was going into the /etc/NetworkManager/NetworkManager.conf file and removing the dhcp=dhcpcd line. "
    – chili555
    Jul 27 '15 at 14:22










  • @chili555 There isn't any such line in my file. Tried adding it and sudo service network-manager restart-ing, no change.
    – RPiAwesomeness
    Jul 27 '15 at 14:26














1












1








1


1





I recently upgraded from 14.04 to 14.10 to 15.04 in succession. I lost internet capabilities each time, thanks to my having to use a Realtek WiFi dongle.



I was able to resolve those issues both times, but I now have this whenever I try to connect to a network by clicking on the option under the Network Manager applet:



enter image description here



I can connect when manually adding the network, but clicking on an option in the applet gives me the above error message.



I've tried reinstalling network-manager, network-manager-gnome, and wpasupplicant, but that didn't help.



EDIT: Something of note, I get a popup whenever I get to the login screen after rebooting asking me to put in the network password.



This makes me think there's something messed up in something that's creating the configuration files for the network, since it isn't saving the password.



However, I don't know what that would be.



EDIT 2: Another thing of note, if I try to connect to a network I've never connected to before, it just closes the menu and nothing happens the first time. However, if I click after that, it brings up the error.










share|improve this question















I recently upgraded from 14.04 to 14.10 to 15.04 in succession. I lost internet capabilities each time, thanks to my having to use a Realtek WiFi dongle.



I was able to resolve those issues both times, but I now have this whenever I try to connect to a network by clicking on the option under the Network Manager applet:



enter image description here



I can connect when manually adding the network, but clicking on an option in the applet gives me the above error message.



I've tried reinstalling network-manager, network-manager-gnome, and wpasupplicant, but that didn't help.



EDIT: Something of note, I get a popup whenever I get to the login screen after rebooting asking me to put in the network password.



This makes me think there's something messed up in something that's creating the configuration files for the network, since it isn't saving the password.



However, I don't know what that would be.



EDIT 2: Another thing of note, if I try to connect to a network I've never connected to before, it just closes the menu and nothing happens the first time. However, if I click after that, it brings up the error.







networking wireless 15.04 network-manager






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jul 27 '15 at 14:22

























asked Jul 27 '15 at 12:05









RPiAwesomeness

6,451195997




6,451195997












  • Did you simply reinstall or purge? I suspect a bad setting resides somewhere in /etc/NetworkManager. You might try sudo apt-get purge; reboot; sudo apt-get install.
    – chili555
    Jul 27 '15 at 13:09










  • @chili555 I downloaded the packages via sudo apt-get -d --reinstall network-manager network-manager-gnome wpasupplicant, then ran sudo apt-get purge network-manager network-manager-gnome wpasupplicant then sudo apt-get install network-manager network-manager-gnome wpasupplicant.
    – RPiAwesomeness
    Jul 27 '15 at 14:14












  • Please see: bbs.archlinux.org/viewtopic.php?id=193839 "The fix for me was going into the /etc/NetworkManager/NetworkManager.conf file and removing the dhcp=dhcpcd line. "
    – chili555
    Jul 27 '15 at 14:22










  • @chili555 There isn't any such line in my file. Tried adding it and sudo service network-manager restart-ing, no change.
    – RPiAwesomeness
    Jul 27 '15 at 14:26


















  • Did you simply reinstall or purge? I suspect a bad setting resides somewhere in /etc/NetworkManager. You might try sudo apt-get purge; reboot; sudo apt-get install.
    – chili555
    Jul 27 '15 at 13:09










  • @chili555 I downloaded the packages via sudo apt-get -d --reinstall network-manager network-manager-gnome wpasupplicant, then ran sudo apt-get purge network-manager network-manager-gnome wpasupplicant then sudo apt-get install network-manager network-manager-gnome wpasupplicant.
    – RPiAwesomeness
    Jul 27 '15 at 14:14












  • Please see: bbs.archlinux.org/viewtopic.php?id=193839 "The fix for me was going into the /etc/NetworkManager/NetworkManager.conf file and removing the dhcp=dhcpcd line. "
    – chili555
    Jul 27 '15 at 14:22










  • @chili555 There isn't any such line in my file. Tried adding it and sudo service network-manager restart-ing, no change.
    – RPiAwesomeness
    Jul 27 '15 at 14:26
















Did you simply reinstall or purge? I suspect a bad setting resides somewhere in /etc/NetworkManager. You might try sudo apt-get purge; reboot; sudo apt-get install.
– chili555
Jul 27 '15 at 13:09




Did you simply reinstall or purge? I suspect a bad setting resides somewhere in /etc/NetworkManager. You might try sudo apt-get purge; reboot; sudo apt-get install.
– chili555
Jul 27 '15 at 13:09












@chili555 I downloaded the packages via sudo apt-get -d --reinstall network-manager network-manager-gnome wpasupplicant, then ran sudo apt-get purge network-manager network-manager-gnome wpasupplicant then sudo apt-get install network-manager network-manager-gnome wpasupplicant.
– RPiAwesomeness
Jul 27 '15 at 14:14






@chili555 I downloaded the packages via sudo apt-get -d --reinstall network-manager network-manager-gnome wpasupplicant, then ran sudo apt-get purge network-manager network-manager-gnome wpasupplicant then sudo apt-get install network-manager network-manager-gnome wpasupplicant.
– RPiAwesomeness
Jul 27 '15 at 14:14














Please see: bbs.archlinux.org/viewtopic.php?id=193839 "The fix for me was going into the /etc/NetworkManager/NetworkManager.conf file and removing the dhcp=dhcpcd line. "
– chili555
Jul 27 '15 at 14:22




Please see: bbs.archlinux.org/viewtopic.php?id=193839 "The fix for me was going into the /etc/NetworkManager/NetworkManager.conf file and removing the dhcp=dhcpcd line. "
– chili555
Jul 27 '15 at 14:22












@chili555 There isn't any such line in my file. Tried adding it and sudo service network-manager restart-ing, no change.
– RPiAwesomeness
Jul 27 '15 at 14:26




@chili555 There isn't any such line in my file. Tried adding it and sudo service network-manager restart-ing, no change.
– RPiAwesomeness
Jul 27 '15 at 14:26










3 Answers
3






active

oldest

votes


















0














Simply try again to install/reinstall network-manager with all dependeces.

sudo apt-get reinstall network-manager
sudo apt-get build-dep network-manager


ł.o.






share|improve this answer





























    0














    Had the exact same problem on Ubuntu 16.04 LTS.



    Solved by this answer in a post regarding Ubuntu 14.04.



    Problem seems to be in the password prompt/popup. Setting the password in the connection details skipped the password prompt and the connection just worked.






    share|improve this answer

















    • 1




      Welcome to Ask Ubuntu! A link to a potential solution is always welcome, but please add context around the link so your fellow users will have some idea what it is and why it's there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. Take into account that being barely more than a link to an external site is a possible reason as to Why and how are some answers deleted?.
      – Videonauth
      Oct 25 '17 at 6:42



















    0














    This worked for me:



    sudo apt-get install -d --reinstall network-manager network-manager-gnome wpasupplicant


    Then



    sudo apt-get purge network-manager network-manager-gnome wpasupplicant


    However, this last step removed from my system several packages related to graphic interface and my display manager. It effectively removed cinammon from my system.



    Then I did:



    sudo apt-get install --fix-missing network-manager network-manager-gnome wpasupplicant


    And finally:



    sudo apt-get upgrade


    After rebooting my computer, I was able to connect to the WiFi network.



    In the Edit Connections menu of the taskbar, I clicked on the network I wanted to connect to and I activated both IPv4 (DHCP) and IPv6 (DHCP only). Then I changed , under the General tab:



    Connection priority for auto-activation


    From 0 to 7.



    Then I was able to login to this open network through the browser.



    However, after this process, I ended up with Xfce, instead of the cinnamon desktop I had before. I don't like Xcfe at all, but the important thing is to be able to connect now.



    This is my hardware and operating system:



    scasas@dappcw148:~$ sudo lshw -C network
    *-network
    description: Wireless interface
    product: Wireless 8265 / 8275
    vendor: Intel Corporation
    physical id: 0
    bus info: pci@0000:02:00.0
    logical name: wlp2s0
    version: 78
    serial: 74:70:fd:32:e4:a2
    width: 64 bits
    clock: 33MHz
    capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
    configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-39-generic firmware=34.0.1 ip=172.20.2.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
    resources: irq:129 memory:ef000000-ef001fff
    *-network
    description: Ethernet interface
    product: Ethernet Connection (4) I219-LM
    vendor: Intel Corporation
    physical id: 1f.6
    bus info: pci@0000:00:1f.6
    logical name: enp0s31f6
    version: 21
    serial: 10:65:30:6a:51:3b
    capacity: 1Gbit/s
    width: 32 bits
    clock: 33MHz
    capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
    configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
    resources: irq:131 memory:ef200000-ef21ffff


    scasas@dappcw148:~$ uname -a
    Linux dappcw148 4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:48:01 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux





    share|improve this answer





















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      3 Answers
      3






      active

      oldest

      votes








      3 Answers
      3






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      0














      Simply try again to install/reinstall network-manager with all dependeces.

      sudo apt-get reinstall network-manager
      sudo apt-get build-dep network-manager


      ł.o.






      share|improve this answer


























        0














        Simply try again to install/reinstall network-manager with all dependeces.

        sudo apt-get reinstall network-manager
        sudo apt-get build-dep network-manager


        ł.o.






        share|improve this answer
























          0












          0








          0






          Simply try again to install/reinstall network-manager with all dependeces.

          sudo apt-get reinstall network-manager
          sudo apt-get build-dep network-manager


          ł.o.






          share|improve this answer












          Simply try again to install/reinstall network-manager with all dependeces.

          sudo apt-get reinstall network-manager
          sudo apt-get build-dep network-manager


          ł.o.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jul 27 '15 at 12:39









          Łukasz Oleksiak

          64




          64

























              0














              Had the exact same problem on Ubuntu 16.04 LTS.



              Solved by this answer in a post regarding Ubuntu 14.04.



              Problem seems to be in the password prompt/popup. Setting the password in the connection details skipped the password prompt and the connection just worked.






              share|improve this answer

















              • 1




                Welcome to Ask Ubuntu! A link to a potential solution is always welcome, but please add context around the link so your fellow users will have some idea what it is and why it's there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. Take into account that being barely more than a link to an external site is a possible reason as to Why and how are some answers deleted?.
                – Videonauth
                Oct 25 '17 at 6:42
















              0














              Had the exact same problem on Ubuntu 16.04 LTS.



              Solved by this answer in a post regarding Ubuntu 14.04.



              Problem seems to be in the password prompt/popup. Setting the password in the connection details skipped the password prompt and the connection just worked.






              share|improve this answer

















              • 1




                Welcome to Ask Ubuntu! A link to a potential solution is always welcome, but please add context around the link so your fellow users will have some idea what it is and why it's there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. Take into account that being barely more than a link to an external site is a possible reason as to Why and how are some answers deleted?.
                – Videonauth
                Oct 25 '17 at 6:42














              0












              0








              0






              Had the exact same problem on Ubuntu 16.04 LTS.



              Solved by this answer in a post regarding Ubuntu 14.04.



              Problem seems to be in the password prompt/popup. Setting the password in the connection details skipped the password prompt and the connection just worked.






              share|improve this answer












              Had the exact same problem on Ubuntu 16.04 LTS.



              Solved by this answer in a post regarding Ubuntu 14.04.



              Problem seems to be in the password prompt/popup. Setting the password in the connection details skipped the password prompt and the connection just worked.







              share|improve this answer












              share|improve this answer



              share|improve this answer










              answered Oct 25 '17 at 6:38









              onlyone

              1




              1








              • 1




                Welcome to Ask Ubuntu! A link to a potential solution is always welcome, but please add context around the link so your fellow users will have some idea what it is and why it's there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. Take into account that being barely more than a link to an external site is a possible reason as to Why and how are some answers deleted?.
                – Videonauth
                Oct 25 '17 at 6:42














              • 1




                Welcome to Ask Ubuntu! A link to a potential solution is always welcome, but please add context around the link so your fellow users will have some idea what it is and why it's there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. Take into account that being barely more than a link to an external site is a possible reason as to Why and how are some answers deleted?.
                – Videonauth
                Oct 25 '17 at 6:42








              1




              1




              Welcome to Ask Ubuntu! A link to a potential solution is always welcome, but please add context around the link so your fellow users will have some idea what it is and why it's there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. Take into account that being barely more than a link to an external site is a possible reason as to Why and how are some answers deleted?.
              – Videonauth
              Oct 25 '17 at 6:42




              Welcome to Ask Ubuntu! A link to a potential solution is always welcome, but please add context around the link so your fellow users will have some idea what it is and why it's there. Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline. Take into account that being barely more than a link to an external site is a possible reason as to Why and how are some answers deleted?.
              – Videonauth
              Oct 25 '17 at 6:42











              0














              This worked for me:



              sudo apt-get install -d --reinstall network-manager network-manager-gnome wpasupplicant


              Then



              sudo apt-get purge network-manager network-manager-gnome wpasupplicant


              However, this last step removed from my system several packages related to graphic interface and my display manager. It effectively removed cinammon from my system.



              Then I did:



              sudo apt-get install --fix-missing network-manager network-manager-gnome wpasupplicant


              And finally:



              sudo apt-get upgrade


              After rebooting my computer, I was able to connect to the WiFi network.



              In the Edit Connections menu of the taskbar, I clicked on the network I wanted to connect to and I activated both IPv4 (DHCP) and IPv6 (DHCP only). Then I changed , under the General tab:



              Connection priority for auto-activation


              From 0 to 7.



              Then I was able to login to this open network through the browser.



              However, after this process, I ended up with Xfce, instead of the cinnamon desktop I had before. I don't like Xcfe at all, but the important thing is to be able to connect now.



              This is my hardware and operating system:



              scasas@dappcw148:~$ sudo lshw -C network
              *-network
              description: Wireless interface
              product: Wireless 8265 / 8275
              vendor: Intel Corporation
              physical id: 0
              bus info: pci@0000:02:00.0
              logical name: wlp2s0
              version: 78
              serial: 74:70:fd:32:e4:a2
              width: 64 bits
              clock: 33MHz
              capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
              configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-39-generic firmware=34.0.1 ip=172.20.2.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
              resources: irq:129 memory:ef000000-ef001fff
              *-network
              description: Ethernet interface
              product: Ethernet Connection (4) I219-LM
              vendor: Intel Corporation
              physical id: 1f.6
              bus info: pci@0000:00:1f.6
              logical name: enp0s31f6
              version: 21
              serial: 10:65:30:6a:51:3b
              capacity: 1Gbit/s
              width: 32 bits
              clock: 33MHz
              capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
              configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
              resources: irq:131 memory:ef200000-ef21ffff


              scasas@dappcw148:~$ uname -a
              Linux dappcw148 4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:48:01 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux





              share|improve this answer


























                0














                This worked for me:



                sudo apt-get install -d --reinstall network-manager network-manager-gnome wpasupplicant


                Then



                sudo apt-get purge network-manager network-manager-gnome wpasupplicant


                However, this last step removed from my system several packages related to graphic interface and my display manager. It effectively removed cinammon from my system.



                Then I did:



                sudo apt-get install --fix-missing network-manager network-manager-gnome wpasupplicant


                And finally:



                sudo apt-get upgrade


                After rebooting my computer, I was able to connect to the WiFi network.



                In the Edit Connections menu of the taskbar, I clicked on the network I wanted to connect to and I activated both IPv4 (DHCP) and IPv6 (DHCP only). Then I changed , under the General tab:



                Connection priority for auto-activation


                From 0 to 7.



                Then I was able to login to this open network through the browser.



                However, after this process, I ended up with Xfce, instead of the cinnamon desktop I had before. I don't like Xcfe at all, but the important thing is to be able to connect now.



                This is my hardware and operating system:



                scasas@dappcw148:~$ sudo lshw -C network
                *-network
                description: Wireless interface
                product: Wireless 8265 / 8275
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:02:00.0
                logical name: wlp2s0
                version: 78
                serial: 74:70:fd:32:e4:a2
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-39-generic firmware=34.0.1 ip=172.20.2.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
                resources: irq:129 memory:ef000000-ef001fff
                *-network
                description: Ethernet interface
                product: Ethernet Connection (4) I219-LM
                vendor: Intel Corporation
                physical id: 1f.6
                bus info: pci@0000:00:1f.6
                logical name: enp0s31f6
                version: 21
                serial: 10:65:30:6a:51:3b
                capacity: 1Gbit/s
                width: 32 bits
                clock: 33MHz
                capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
                configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
                resources: irq:131 memory:ef200000-ef21ffff


                scasas@dappcw148:~$ uname -a
                Linux dappcw148 4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:48:01 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux





                share|improve this answer
























                  0












                  0








                  0






                  This worked for me:



                  sudo apt-get install -d --reinstall network-manager network-manager-gnome wpasupplicant


                  Then



                  sudo apt-get purge network-manager network-manager-gnome wpasupplicant


                  However, this last step removed from my system several packages related to graphic interface and my display manager. It effectively removed cinammon from my system.



                  Then I did:



                  sudo apt-get install --fix-missing network-manager network-manager-gnome wpasupplicant


                  And finally:



                  sudo apt-get upgrade


                  After rebooting my computer, I was able to connect to the WiFi network.



                  In the Edit Connections menu of the taskbar, I clicked on the network I wanted to connect to and I activated both IPv4 (DHCP) and IPv6 (DHCP only). Then I changed , under the General tab:



                  Connection priority for auto-activation


                  From 0 to 7.



                  Then I was able to login to this open network through the browser.



                  However, after this process, I ended up with Xfce, instead of the cinnamon desktop I had before. I don't like Xcfe at all, but the important thing is to be able to connect now.



                  This is my hardware and operating system:



                  scasas@dappcw148:~$ sudo lshw -C network
                  *-network
                  description: Wireless interface
                  product: Wireless 8265 / 8275
                  vendor: Intel Corporation
                  physical id: 0
                  bus info: pci@0000:02:00.0
                  logical name: wlp2s0
                  version: 78
                  serial: 74:70:fd:32:e4:a2
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                  configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-39-generic firmware=34.0.1 ip=172.20.2.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
                  resources: irq:129 memory:ef000000-ef001fff
                  *-network
                  description: Ethernet interface
                  product: Ethernet Connection (4) I219-LM
                  vendor: Intel Corporation
                  physical id: 1f.6
                  bus info: pci@0000:00:1f.6
                  logical name: enp0s31f6
                  version: 21
                  serial: 10:65:30:6a:51:3b
                  capacity: 1Gbit/s
                  width: 32 bits
                  clock: 33MHz
                  capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
                  configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
                  resources: irq:131 memory:ef200000-ef21ffff


                  scasas@dappcw148:~$ uname -a
                  Linux dappcw148 4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:48:01 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux





                  share|improve this answer












                  This worked for me:



                  sudo apt-get install -d --reinstall network-manager network-manager-gnome wpasupplicant


                  Then



                  sudo apt-get purge network-manager network-manager-gnome wpasupplicant


                  However, this last step removed from my system several packages related to graphic interface and my display manager. It effectively removed cinammon from my system.



                  Then I did:



                  sudo apt-get install --fix-missing network-manager network-manager-gnome wpasupplicant


                  And finally:



                  sudo apt-get upgrade


                  After rebooting my computer, I was able to connect to the WiFi network.



                  In the Edit Connections menu of the taskbar, I clicked on the network I wanted to connect to and I activated both IPv4 (DHCP) and IPv6 (DHCP only). Then I changed , under the General tab:



                  Connection priority for auto-activation


                  From 0 to 7.



                  Then I was able to login to this open network through the browser.



                  However, after this process, I ended up with Xfce, instead of the cinnamon desktop I had before. I don't like Xcfe at all, but the important thing is to be able to connect now.



                  This is my hardware and operating system:



                  scasas@dappcw148:~$ sudo lshw -C network
                  *-network
                  description: Wireless interface
                  product: Wireless 8265 / 8275
                  vendor: Intel Corporation
                  physical id: 0
                  bus info: pci@0000:02:00.0
                  logical name: wlp2s0
                  version: 78
                  serial: 74:70:fd:32:e4:a2
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                  configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-39-generic firmware=34.0.1 ip=172.20.2.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11
                  resources: irq:129 memory:ef000000-ef001fff
                  *-network
                  description: Ethernet interface
                  product: Ethernet Connection (4) I219-LM
                  vendor: Intel Corporation
                  physical id: 1f.6
                  bus info: pci@0000:00:1f.6
                  logical name: enp0s31f6
                  version: 21
                  serial: 10:65:30:6a:51:3b
                  capacity: 1Gbit/s
                  width: 32 bits
                  clock: 33MHz
                  capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
                  configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
                  resources: irq:131 memory:ef200000-ef21ffff


                  scasas@dappcw148:~$ uname -a
                  Linux dappcw148 4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:48:01 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 26 '18 at 15:54









                  Santi

                  1287




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