Wifi not getting connected but LAN cable connection is working. Please help [duplicate]












0
















This question already has an answer here:




  • Installing Broadcom Wireless Drivers

    47 answers




I recently installed Ubuntu 18.04.1 LTS from Windows 10. After installation system is not detecting any Wifi it says no adapters available. But when connected through LAN cable the internet works.



I tried couple of things but nothing helped.




rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no



lshw -c network
WARNING: you should run this program as super-user.
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: enp1s0
version: 05
serial: b8:ca:3a:c3:5e:d2
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.0.9 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:16 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
*-network
description: Network controller
product: BCM43142 802.11b/g/n
vendor: Broadcom Limited
physical id: 0
bus info: pci@0000:02:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=bcma-pci-bridge latency=0
resources: irq:17 memory:c0500000-c0507fff
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.


Please help!










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marked as duplicate by Jeremy31, karel, chili555 networking
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Jan 6 at 15:37


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.




















    0
















    This question already has an answer here:




    • Installing Broadcom Wireless Drivers

      47 answers




    I recently installed Ubuntu 18.04.1 LTS from Windows 10. After installation system is not detecting any Wifi it says no adapters available. But when connected through LAN cable the internet works.



    I tried couple of things but nothing helped.




    rfkill list all
    0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no



    lshw -c network
    WARNING: you should run this program as super-user.
    *-network
    description: Ethernet interface
    product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
    vendor: Realtek Semiconductor Co., Ltd.
    physical id: 0
    bus info: pci@0000:01:00.0
    logical name: enp1s0
    version: 05
    serial: b8:ca:3a:c3:5e:d2
    size: 100Mbit/s
    capacity: 100Mbit/s
    width: 64 bits
    clock: 33MHz
    capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
    configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.0.9 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
    resources: irq:16 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
    *-network
    description: Network controller
    product: BCM43142 802.11b/g/n
    vendor: Broadcom Limited
    physical id: 0
    bus info: pci@0000:02:00.0
    version: 01
    width: 64 bits
    clock: 33MHz
    capabilities: bus_master cap_list
    configuration: driver=bcma-pci-bridge latency=0
    resources: irq:17 memory:c0500000-c0507fff
    WARNING: output may be incomplete or inaccurate, you should run this program as super-user.


    Please help!










    share|improve this question















    marked as duplicate by Jeremy31, karel, chili555 networking
    Users with the  networking badge can single-handedly close networking questions as duplicates and reopen them as needed.

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    Jan 6 at 15:37


    This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.


















      0












      0








      0









      This question already has an answer here:




      • Installing Broadcom Wireless Drivers

        47 answers




      I recently installed Ubuntu 18.04.1 LTS from Windows 10. After installation system is not detecting any Wifi it says no adapters available. But when connected through LAN cable the internet works.



      I tried couple of things but nothing helped.




      rfkill list all
      0: hci0: Bluetooth
      Soft blocked: no
      Hard blocked: no



      lshw -c network
      WARNING: you should run this program as super-user.
      *-network
      description: Ethernet interface
      product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
      vendor: Realtek Semiconductor Co., Ltd.
      physical id: 0
      bus info: pci@0000:01:00.0
      logical name: enp1s0
      version: 05
      serial: b8:ca:3a:c3:5e:d2
      size: 100Mbit/s
      capacity: 100Mbit/s
      width: 64 bits
      clock: 33MHz
      capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.0.9 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
      resources: irq:16 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
      *-network
      description: Network controller
      product: BCM43142 802.11b/g/n
      vendor: Broadcom Limited
      physical id: 0
      bus info: pci@0000:02:00.0
      version: 01
      width: 64 bits
      clock: 33MHz
      capabilities: bus_master cap_list
      configuration: driver=bcma-pci-bridge latency=0
      resources: irq:17 memory:c0500000-c0507fff
      WARNING: output may be incomplete or inaccurate, you should run this program as super-user.


      Please help!










      share|improve this question

















      This question already has an answer here:




      • Installing Broadcom Wireless Drivers

        47 answers




      I recently installed Ubuntu 18.04.1 LTS from Windows 10. After installation system is not detecting any Wifi it says no adapters available. But when connected through LAN cable the internet works.



      I tried couple of things but nothing helped.




      rfkill list all
      0: hci0: Bluetooth
      Soft blocked: no
      Hard blocked: no



      lshw -c network
      WARNING: you should run this program as super-user.
      *-network
      description: Ethernet interface
      product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
      vendor: Realtek Semiconductor Co., Ltd.
      physical id: 0
      bus info: pci@0000:01:00.0
      logical name: enp1s0
      version: 05
      serial: b8:ca:3a:c3:5e:d2
      size: 100Mbit/s
      capacity: 100Mbit/s
      width: 64 bits
      clock: 33MHz
      capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.0.9 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
      resources: irq:16 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
      *-network
      description: Network controller
      product: BCM43142 802.11b/g/n
      vendor: Broadcom Limited
      physical id: 0
      bus info: pci@0000:02:00.0
      version: 01
      width: 64 bits
      clock: 33MHz
      capabilities: bus_master cap_list
      configuration: driver=bcma-pci-bridge latency=0
      resources: irq:17 memory:c0500000-c0507fff
      WARNING: output may be incomplete or inaccurate, you should run this program as super-user.


      Please help!





      This question already has an answer here:




      • Installing Broadcom Wireless Drivers

        47 answers








      networking drivers wireless dell






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      share|improve this question








      edited Jan 6 at 9:52









      AlexOnLinux

      38419




      38419










      asked Jan 6 at 9:34









      Srikanta B USrikanta B U

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      marked as duplicate by Jeremy31, karel, chili555 networking
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      Jan 6 at 15:37


      This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.






      marked as duplicate by Jeremy31, karel, chili555 networking
      Users with the  networking badge can single-handedly close networking questions as duplicates and reopen them as needed.

      StackExchange.ready(function() {
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      $hover.hover(
      function() {
      $hover.showInfoMessage('', {
      messageElement: $msg.clone().show(),
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      position: { my: 'bottom left', at: 'top center', offsetTop: -7 },
      dismissable: false,
      relativeToBody: true
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      Jan 6 at 15:37


      This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
























          1 Answer
          1






          active

          oldest

          votes


















          -1














          Code:



          sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
          git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
          sudo dkms add ./rtlwifi_new
          sudo dkms install rtlwifi-new/0.6


          Reboot
          If you notice weak signal try
          Code:



          sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1


          and see if it is better, if not do
          Code:



          sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2


          Resource Worked for me






          share|improve this answer






























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            -1














            Code:



            sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
            git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
            sudo dkms add ./rtlwifi_new
            sudo dkms install rtlwifi-new/0.6


            Reboot
            If you notice weak signal try
            Code:



            sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1


            and see if it is better, if not do
            Code:



            sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2


            Resource Worked for me






            share|improve this answer




























              -1














              Code:



              sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
              git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
              sudo dkms add ./rtlwifi_new
              sudo dkms install rtlwifi-new/0.6


              Reboot
              If you notice weak signal try
              Code:



              sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1


              and see if it is better, if not do
              Code:



              sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2


              Resource Worked for me






              share|improve this answer


























                -1












                -1








                -1







                Code:



                sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
                git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
                sudo dkms add ./rtlwifi_new
                sudo dkms install rtlwifi-new/0.6


                Reboot
                If you notice weak signal try
                Code:



                sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1


                and see if it is better, if not do
                Code:



                sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2


                Resource Worked for me






                share|improve this answer













                Code:



                sudo apt remove bcmwl-kernel-source && sudo apt install git dkms
                git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
                sudo dkms add ./rtlwifi_new
                sudo dkms install rtlwifi-new/0.6


                Reboot
                If you notice weak signal try
                Code:



                sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1


                and see if it is better, if not do
                Code:



                sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2


                Resource Worked for me







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jan 6 at 11:38









                saleshsalesh

                1




                1















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