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    [ABANDONED] Wired Ethernet Difficulty

    I can no longer connect to any wired ethernet. I was previously able to connect but it has been increasingly unreliable and now I can't connect at all.

    I am pretty naive about networking.

    I have a couple of consumer routers and I can't connect to either of them by ethernet wire.

    It says "connecting" with the blue spinny then it says "deactivated" and I get the code: enp0s31f6

    I can connect to one router via wifi, but I cannot access the router GUI at 192.168.1.1. The other router is not configured yet because I can't get an initial connection.

    I have tried using the ethernet port on the computer and on the dock.

    Assistance appreciated...











    Last edited by TwoFistedJustice; May 04, 2022, 02:49 PM.

    #2
    You haven't given us any information that we can work with. Make and model of your laptop? Type of Ethernet chip?
    You can use "sudo lshw" in a Konsole and paste the output into a "" box.
    "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
    – John F. Kennedy, February 26, 1962.

    Comment


      #3
      Code:
      ares                         
         description: Notebook
         product: 20F5S0X506 (LENOVO_MT_20F5_BU_Think_FM_ThinkPad X260)
         vendor: LENOVO
         version: ThinkPad X260
         serial: PC0C3NKK
         width: 64 bits
         capabilities: smbios-2.8 dmi-2.8 smp vsyscall32
         configuration: administrator_password=disabled chassis=notebook family=ThinkPad X260 power-on_password=disabled sku=LENOVO_MT_20F5_BU_Think_FM_ThinkPad X260 uuid=4C8F958E-7D2E-B211-A85C-B26B088C9D0B
       *-core
            description: Motherboard
            product: 20F5S0X506
            vendor: LENOVO
            physical id: 0
            version: SDK0J40705 WIN
            serial: L1HF63405HS
            slot: Not Available
          *-cache:0
               description: L1 cache
               physical id: 3
               slot: L1 Cache
               size: 64KiB
               capacity: 64KiB
               capabilities: synchronous internal write-back data
               configuration: level=1
          *-cache:1
               description: L1 cache
               physical id: 4
               slot: L1 Cache
               size: 64KiB
               capacity: 64KiB
               capabilities: synchronous internal write-back instruction
               configuration: level=1
          *-cache:2
               description: L2 cache
               physical id: 5
               slot: L2 Cache
               size: 512KiB
               capacity: 512KiB
               capabilities: synchronous internal write-back unified
               configuration: level=2
          *-cache:3
               description: L3 cache
               physical id: 6
               slot: L3 Cache
               size: 3MiB
               capacity: 3MiB
               capabilities: synchronous internal write-back unified
               configuration: level=3
          *-cpu
               description: CPU
               product: Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz
               vendor: Intel Corp.
               physical id: 7
               bus info: cpu@0
               version: Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz
               serial: None
               slot: U3E1
               size: 2481MHz
               capacity: 4005MHz
               width: 64 bits
               clock: 100MHz
               capabilities: lm fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc art arch_perfmon pebs bts rep_goo
      d nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fau
      lt epb invpcid_single pti ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md
      _clear flush_l1d cpufreq
               configuration: cores=2 enabledcores=2 threads=4
          *-memory
               description: System Memory
               physical id: 8
               slot: System board or motherboard
               size: 16GiB
             *-bank
                  description: SODIMM DDR4 Synchronous 2133 MHz (0.5 ns)
                  product: 16ATF2G64HZ-2G3E2
                  vendor: Micron
                  physical id: 0
                  serial: 182A3868
                  slot: ChannelA-DIMM0
                  size: 16GiB
                  width: 64 bits
                  clock: 2133MHz (0.5ns)
          *-firmware
               description: BIOS
               vendor: LENOVO
               physical id: b
               version: R02ET71W (1.44 )
               date: 05/08/2019
               size: 128KiB
               capacity: 16MiB
               capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy720 int5printscreen int9keyboard int14serial int17printer int10video acpi usb biosbootspecification uefi
          *-pci
               description: Host bridge
               product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers
               vendor: Intel Corporation
               physical id: 100
               bus info: pci@0000:00:00.0
               version: 08
               width: 32 bits
               clock: 33MHz
               configuration: driver=skl_uncore
               resources: irq:0
             *-display
                  description: VGA compatible controller
                  product: Skylake GT2 [HD Graphics 520]
                  vendor: Intel Corporation
                  physical id: 2
                  bus info: pci@0000:00:02.0
                  version: 07
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
                  configuration: driver=i915 latency=0
                  resources: irq:126 memory:f0000000-f0ffffff memory:e0000000-efffffff ioport:e000(size=64) memory:c0000-dffff
             *-usb
                  description: USB controller
                  product: Sunrise Point-LP USB 3.0 xHCI Controller
                  vendor: Intel Corporation
                  physical id: 14
                  bus info: pci@0000:00:14.0
                  version: 21
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi xhci bus_master cap_list
                  configuration: driver=xhci_hcd latency=0
                  resources: irq:122 memory:f1220000-f122ffff
                *-usbhost:0
                     product: xHCI Host Controller
                     vendor: Linux 5.13.0-40-generic xhci-hcd
                     physical id: 0
                     bus info: usb@1
                     logical name: usb1
                     version: 5.13
                     capabilities: usb-2.00
                     configuration: driver=hub slots=12 speed=480Mbit/s
                   *-usb:0
                        description: USB hub
                        product: Lenovo ThinkPad Dock
                        vendor: LENOVO
                        physical id: 4
                        bus info: usb@1:4
                        version: 50.40
                        capabilities: usb-2.10
                        configuration: driver=hub slots=4 speed=480Mbit/s
                      *-usb:0
                           description: Mouse
                           product: Lenovo USB Optical Mouse
                           vendor: Logitech
                           physical id: 2
                           bus info: usb@1:4.2
                           version: 63.00
                           capabilities: usb-2.00
                           configuration: driver=usbhid maxpower=100mA speed=2Mbit/s
                      *-usb:1
                           description: Keyboard
                           product: Natural
                           vendor: Microsoft
                           physical id: 3
                           bus info: usb@1:4.3
                           version: 1.73
                           capabilities: usb-2.00
                           configuration: driver=usbhid maxpower=100mA speed=2Mbit/s
                      *-usb:2
                           description: USB hub
                           product: Lenovo ThinkPad Dock
                           vendor: Lenovo
                           physical id: 4
                           bus info: usb@1:4.4
                           version: 0.01
                           serial: Rev1.2
                           capabilities: usb-2.00
                           configuration: driver=hub maxpower=2mA slots=3 speed=480Mbit/s
                         *-usb
                              description: Mass storage device
                              product: Ultra Fit
                              vendor: SanDisk
                              physical id: 3
                              bus info: usb@1:4.4.3
                              version: 1.00
                              serial: 4C531001520220117502
                              capabilities: usb-2.10 scsi
                              configuration: driver=usb-storage maxpower=224mA speed=480Mbit/s
                   *-usb:1
                        description: Bluetooth wireless interface
                        vendor: Intel Corp.
                        physical id: 7
                        bus info: usb@1:7
                        version: 0.01
                        capabilities: bluetooth usb-2.00
                        configuration: driver=btusb maxpower=100mA speed=12Mbit/s
                   *-usb:2
                        description: Video
                        product: Integrated Camera
                        vendor: SunplusIT Inc
                        physical id: 8
                        bus info: usb@1:8
                        version: 0.12
                        capabilities: usb-2.00
                        configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
                *-usbhost:1
                     product: xHCI Host Controller
                     vendor: Linux 5.13.0-40-generic xhci-hcd
                     physical id: 1
                     bus info: usb@2
                     logical name: usb2
                     version: 5.13
                     capabilities: usb-3.00
                     configuration: driver=hub slots=6 speed=5000Mbit/s
                   *-usb
                        description: USB hub
                        product: Lenovo ThinkPad Dock
                        vendor: LENOVO
                        physical id: 4
                        bus info: usb@2:4
                        version: 50.41
                        capabilities: usb-3.00
                        configuration: driver=hub slots=4 speed=5000Mbit/s
             *-generic
                  description: Signal processing controller
                  product: Sunrise Point-LP Thermal subsystem
                  vendor: Intel Corporation
                  physical id: 14.2
                  bus info: pci@0000:00:14.2
                  version: 21
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi cap_list
                  configuration: driver=intel_pch_thermal latency=0
                  resources: irq:18 memory:f124a000-f124afff
             *-communication:0
                  description: Communication controller
                  product: Sunrise Point-LP CSME HECI #1
                  vendor: Intel Corporation
                  physical id: 16
                  bus info: pci@0000:00:16.0
                  version: 21
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi bus_master cap_list
                  configuration: driver=mei_me latency=0
                  resources: irq:125 memory:f124b000-f124bfff
             *-communication:1
                  description: Serial controller
                  product: Sunrise Point-LP Active Management Technology - SOL
                  vendor: Intel Corporation
                  physical id: 16.3
                  bus info: pci@0000:00:16.3
                  version: 21
                  width: 32 bits
                  clock: 66MHz
                  capabilities: msi pm 16550 cap_list
                  configuration: driver=serial latency=0
                  resources: irq:19 ioport:e080(size=8) memory:f124f000-f124ffff
             *-sata
                  description: SATA controller
                  product: Sunrise Point-LP SATA Controller [AHCI mode]
                  vendor: Intel Corporation
                  physical id: 17
                  bus info: pci@0000:00:17.0
                  version: 21
                  width: 32 bits
                  clock: 66MHz
                  capabilities: sata msi pm ahci_1.0 bus_master cap_list
                  configuration: driver=ahci latency=0
                  resources: irq:123 memory:f1248000-f1249fff memory:f124e000-f124e0ff ioport:e088(size=8) ioport:e090(size=4) ioport:e060(size=32) memory:f124c000-f124c7ff
             *-pci:0
                  description: PCI bridge
                  product: Sunrise Point-LP PCI Express Root Port #1
                  vendor: Intel Corporation
                  physical id: 1c
                  bus info: pci@0000:00:1c.0
                  version: f1
                  width: 32 bits
                  clock: 33MHz
                  capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
                  configuration: driver=pcieport
                  resources: irq:120 memory:f1100000-f11fffff
                *-generic
                     description: Unassigned class
                     product: RTS522A PCI Express Card Reader
                     vendor: Realtek Semiconductor Co., Ltd.
                     physical id: 0
                     bus info: pci@0000:02:00.0
                     version: 01
                     width: 32 bits
                     clock: 33MHz
                     capabilities: pm msi pciexpress bus_master cap_list
                     configuration: driver=rtsx_pci latency=0
                     resources: irq:124 memory:f1100000-f1100fff
             *-pci:1
                  description: PCI bridge
                  product: Sunrise Point-LP PCI Express Root Port #3
                  vendor: Intel Corporation
                  physical id: 1c.2
                  bus info: pci@0000:00:1c.2
                  version: f1
                  width: 32 bits
                  clock: 33MHz
                  capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
                  configuration: driver=pcieport
                  resources: irq:121 memory:f1000000-f10fffff
                *-network
                     description: Wireless interface
                     product: Wireless 8260
                     vendor: Intel Corporation
                     physical id: 0
                     bus info: pci@0000:04:00.0
                     logical name: wlp4s0
                     version: 3a
                     serial: 44:85:00:69:18:c9
                     width: 64 bits
                     clock: 33MHz
                     capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                     configuration: broadcast=yes driver=iwlwifi driverversion=5.13.0-40-generic firmware=36.77d01142.0 8000C-36.ucode ip=192.168.50.121 latency=0 link=yes multicast=yes wireless=IEEE 802.11
                     resources: irq:128 memory:f1000000-f1001fff
             *-isa
                  description: ISA bridge
                  product: Sunrise Point-LP LPC Controller
                  vendor: Intel Corporation
                  physical id: 1f
                  bus info: pci@0000:00:1f.0
                  version: 21
                  width: 32 bits
                  clock: 33MHz
                  capabilities: isa bus_master
                  configuration: latency=0
             *-memory UNCLAIMED
                  description: Memory controller
                  product: Sunrise Point-LP PMC
                  vendor: Intel Corporation
                  physical id: 1f.2
                  bus info: pci@0000:00:1f.2
                  version: 21
                  width: 32 bits
                  clock: 33MHz (30.3ns)
                  configuration: latency=0
                  resources: memory:f1244000-f1247fff
             *-multimedia
                  description: Audio device
                  product: Sunrise Point-LP HD Audio
                  vendor: Intel Corporation
                  physical id: 1f.3
                  bus info: pci@0000:00:1f.3
                  version: 21
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi bus_master cap_list
                  configuration: driver=snd_hda_intel latency=64
                  resources: irq:127 memory:f1240000-f1243fff memory:f1230000-f123ffff
             *-serial
                  description: SMBus
                  product: Sunrise Point-LP SMBus
                  vendor: Intel Corporation
                  physical id: 1f.4
                  bus info: pci@0000:00:1f.4
                  version: 21
                  width: 64 bits
                  clock: 33MHz
                  configuration: driver=i801_smbus latency=0
                  resources: irq:16 memory:f124d000-f124d0ff ioport:efa0(size=32)
             *-network
                  description: Ethernet interface
                  product: Ethernet Connection I219-LM
                  vendor: Intel Corporation
                  physical id: 1f.6
                  bus info: pci@0000:00:1f.6
                  logical name: enp0s31f6
                  version: 21
                  serial: 50:7b:9d:c9:47:4a
                  size: 100Mbit/s
                  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=5.13.0-40-generic duplex=full firmware=0.13-3 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
                  resources: irq:129 memory:f1200000-f121ffff
          *-pnp00:00
               product: PnP device PNP0c01
               physical id: 0
               capabilities: pnp
               configuration: driver=system
          *-pnp00:01
               product: PnP device PNP0c02
               physical id: 1
               capabilities: pnp
               configuration: driver=system
          *-pnp00:02
               product: PnP device PNP0b00
               physical id: 2
               capabilities: pnp
               configuration: driver=rtc_cmos
          *-pnp00:03
               product: PnP device LEN0071
               physical id: 9
               capabilities: pnp
               configuration: driver=i8042 kbd
          *-pnp00:04
               product: PnP device LEN2014
               physical id: a
               capabilities: pnp
               configuration: driver=i8042 aux
          *-pnp00:05
               product: PnP device INT3f0d
               physical id: c
               capabilities: pnp
               configuration: driver=system
          *-pnp00:06
               product: PnP device PNP0c02
               physical id: d
               capabilities: pnp
               configuration: driver=system
          *-pnp00:07
               product: PnP device PNP0c02
               physical id: e
               capabilities: pnp
               configuration: driver=system
          *-pnp00:08
               product: PnP device PNP0c31
               physical id: f
               capabilities: pnp
               configuration: driver=tpm_tis
          *-scsi:0
               physical id: 10
               logical name: scsi1
               capabilities: emulated
             *-disk
                  description: ATA Disk
                  product: SAMSUNG MZ7LN256
                  physical id: 0.0.0
                  bus info: scsi@1:0.0.0
                  logical name: /dev/sda
                  version: 3L6Q
                  serial: S20HNAAH270017
                  size: 238GiB (256GB)
                  capabilities: gpt-1.00 partitioned partitioned:gpt
                  configuration: ansiversion=5 guid=6da45da5-03f8-433a-a234-62ab9a54bba7 logicalsectorsize=512 sectorsize=512
                *-volume:0 UNCLAIMED
                     description: Windows FAT volume
                     vendor: mkfs.fat
                     physical id: 1
                     bus info: scsi@1:0.0.0,1
                     version: FAT32
                     serial: d047-5049
                     size: 285MiB
                     capacity: 286MiB
                     capabilities: boot fat initialized
                     configuration: FATs=2 filesystem=fat
                *-volume:1
                     description: Linux swap volume
                     vendor: Linux
                     physical id: 2
                     bus info: scsi@1:0.0.0,2
                     logical name: /dev/sda2
                     version: 1
                     serial: e9e62685-26f0-41c1-945c-3ac8b455b920
                     size: 21GiB
                     capacity: 21GiB
                     capabilities: nofs swap initialized
                     configuration: filesystem=swap pagesize=4095
                *-volume:2
                     description: EFI partition
                     physical id: 3
                     bus info: scsi@1:0.0.0,3
                     logical name: /dev/sda3
                     logical name: /
                     logical name: /home
                     logical name: /run/timeshift/backup
                     serial: 6b20b696-9269-47bd-89d0-230b4e56400e
                     capacity: 216GiB
                     configuration: mount.fstype=btrfs mount.options=rw,relatime,ssd,space_cache,subvolid =5,subvol=/ state=mounted
          *-scsi:1
               physical id: 11
               logical name: scsi2
               capabilities: emulated scsi-host
               configuration: driver=usb-storage
             *-disk
                  description: SCSI Disk
                  product: Ultra Fit
                  vendor: SanDisk
                  physical id: 0.0.0
                  bus info: scsi@2:0.0.0
                  logical name: /dev/sdb
                  version: 1.00
                  serial: 4C531001520220117502
                  size: 57GiB (62GB)
                  capabilities: removable
                  configuration: ansiversion=6 logicalsectorsize=512 sectorsize=512
                *-medium
                     physical id: 0
                     logical name: /dev/sdb
                     size: 57GiB (62GB)
                     capabilities: partitioned partitioned:dos
                     configuration: signature=0060a891
                   *-volume
                        description: Linux filesystem partition
                        physical id: 1
                        logical name: /dev/sdb1
                        capacity: 57GiB
                        capabilities: primary bootable
       *-battery:0
            product: 45N1773
            vendor: SANYO
            physical id: 1
            slot: Front
            capacity: 23200mWh
            configuration: voltage=11.1V
       *-battery:1
            product: 45N1775
            vendor: SANYO
            physical id: 2
            slot: Rear
            capacity: 23200mWh
            configuration: voltage=11.1V

      Comment


        #4
        I have a couple of consumer routers and I can't connect to either of them by ethernet wire.
        Are you using the same ethernet cable in all scenarios? Have you tried using another cable? Cables and their connectors can go bad. If you tried it on two different routers, there is a likelihood that the cable and/or the network card are not in working condition.
        I was previously able to connect but it has been increasingly unreliable and now I can't connect at all.
        If you are trying to say that you noticed their was a gradual degradation of the connection over time and it eventually stopped:
        This indicates a physical hardware problem. Sometimes network cards go bad and quit working, especially in laptops in my experience. If your wireless is working, it probably has nothing to do with the network stack (software related to networking on the computer) or the router(s) itself.
        If after using another cable or if possible, another network card (usb dongle, etc), then move on to other possibilities. But the first troubleshooting priority is to make sure your cable and/or network card are physically working. If you do not have another cable, try to borrow one from a friend or neighbor.

        Another option is to boot from a live Linux DVD/USB and try connecting to the router that way. If the problems also exist in the live DVD, then it points to a possible problem with the cable and/or network card. Alternatively, you could also achieve this by booting into Windows (if you are on a dual-boot system) to see if the problem can be replicated there.

        You may need to seek help from a computer repair technician.
        Good Luck!
        Last edited by rab0171610; Apr 27, 2022, 10:50 PM.

        Comment


          #5
          I tried a different cable and no joy.


          I ordered a usb ethernet adapter and will try that when it gets here next week.

          Hardware question: is the ehternet port controlled by the Wireless LAN card?
          Last edited by TwoFistedJustice; Apr 28, 2022, 12:10 AM.

          Comment


            #6
            Most network devices are either wired or wireless, meaning your laptop likely has two network cards, one wireless and one wired. This means it is unlikely that the Ethernet port on the wired adapter would be controlled by the wireless adapter. On a side note, if you can get the problem fixed, you will be able to get into the router and set it up with the cable attached. Most often, you will not be able to set up the router using a wireless connection. If your router is not setup but is accepting wireless connections, be aware that your wireless access point may be open at this time. If that is the case, anyone that can scan your access point can also connect and use your network. You do not want to be responsible to your ISP if someone uses the connection for nefarious purposes.

            In the meantime, please consider seeing if you can get the wired connection working in either Windows (if that is possible) or a live DVD/USB image. Since you said it was working before, it likely is supported by your Linux installation and has appropriate drivers that work. If the issue is replicated in a different OS, you still cannot eliminate a hardware issue. If it works in a different OS, then it being a hardware issue can likely be eliminated. At that point, you would begin troubleshooting your software setup.

            Comment


              #7
              While you are waiting on the network adapter to arrive, can you please post the output of (see warning about IP address below first):

              ip -s link

              and

              inxi -ni

              The first command will output information similar to:

              $ ip -s link
              2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
              link/ether 18:c0:3c:74:3b:c1 brd ff:ff:ff:ff:ff:ff
              RX: bytes packets errors dropped missed mcast
              9044204860 7047538 0 0 0 27823
              TX: bytes packets errors dropped carrier collsns
              645599711 4493095 0 0 0 0
              altname enp3s0


              The second command will provide output similar to:


              $ inxi -ni
              Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 IF: enp1s0
              state: up speed: 100 Mbps duplex: full mac: 1n:1c:0f:c9:72:3d IP v4: 192.0.10.997/16 type: noprefixroute
              scope: global WAN IP: 999.999.9.98

              Please do not post the last part of the last command that says WAN IP!!! We do not need to see your external IP address. Please do not copy and past that part of the output. Just post everything before it says WAN IP, like this:

              $ inxi -ni
              Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 IF: enp1s0
              state: up speed: 100 Mbps duplex: full mac: 1n:1c:0f:c9:72:3d IP v4: 192.0.10.997/16 type: noprefixroute
              scope: global WAN IP:

              If inxi returns command not found, just install it like so:

              sudo apt install inxi

              and run the command again.

              Comment


                #8
                Your wifi:
                *-network description: Wireless interface product: Wireless 8260 vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlp4s0 version: 3a serial: 44:85:00:69:18:c9 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=5.13.0-40-generic firmware=36.77d01142.0 8000C-36.ucode ip=192.168.50.121 latency=0 link=yes multicast=yes wireless=IEEE 802.11 resources: irq:128 memory:f1000000-f1001fff
                Your wired ethernet:
                *-network description: Ethernet interface product: Ethernet Connection I219-LM vendor: Intel Corporation physical id: 1f.6 bus info: pci@0000:00:1f.6 logical name: enp0s31f6 version: 21 serial: 50:7b:9d:c9:47:4a size: 100Mbit/s 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=5.13.0-40-generic duplex=full firmware=0.13-3 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:129 memory:f1200000-f121ffff
                What does "sudo rfkill" show?
                "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
                – John F. Kennedy, February 26, 1962.

                Comment


                  #9
                  Code:
                  ~$ sudo rfkill
                  ID TYPE      DEVICE                   SOFT      HARD
                  0 bluetooth hci0                unblocked unblocked
                  1 wlan      phy0                unblocked unblocked
                  2 bluetooth tpacpi_bluetooth_sw unblocked unblocked

                  With Ethernet cable unplugged
                  Code:
                  ~$ ip -s link 
                  1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
                     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
                     RX: bytes  packets  errors  dropped overrun mcast    
                     72212      1077     0       0       0       0        
                     TX: bytes  packets  errors  dropped carrier collsns  
                     72212      1077     0       0       0       0        
                  2: enp0s31f6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
                     link/ether 50:7b:9d:c9:47:4a brd ff:ff:ff:ff:ff:ff
                     RX: bytes  packets  errors  dropped overrun mcast    
                     0          0        0       0       0       0        
                     TX: bytes  packets  errors  dropped carrier collsns  
                     0          0        0       0       0       0        
                  3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DORMANT group default qlen 1000
                     link/ether 44:85:00:69:18:c9 brd ff:ff:ff:ff:ff:ff
                     RX: bytes  packets  errors  dropped overrun mcast    
                     55456505   44806    0       0       0       0        
                     TX: bytes  packets  errors  dropped carrier collsns  
                     2102377    17313    0       0       0       0
                  Code:
                  ~$ inxi -ni
                  Network:   Device-1: Intel Ethernet I219-LM driver: e1000e  
                            IF: enp0s31f6 state: down mac: 50:7b:9d:c9:47:4a  
                            Device-2: Intel Wireless 8260 driver: iwlwifi  
                            IF: wlp4s0 state: up mac: 44:85:00:69:18:c9  
                            IP v4: 192.168.50.121/24 type: dynamic noprefixroute scope: global  
                            IP v6: fe80::8e5c:d300:c607:400/64 type: noprefixroute scope: link  
                            WAN IP: 38.95.237.137


                  With Ethernet cable plugged and attempting to connect to router

                  Code:
                  ~$ ip -s link
                  1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
                     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
                     RX: bytes  packets  errors  dropped overrun mcast    
                     88499      1280     0       0       0       0        
                     TX: bytes  packets  errors  dropped carrier collsns  
                     88499      1280     0       0       0       0        
                  2: enp0s31f6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
                     link/ether 50:7b:9d:c9:47:4a brd ff:ff:ff:ff:ff:ff
                     RX: bytes  packets  errors  dropped overrun mcast    
                     0          0        0       0       0       0        
                     TX: bytes  packets  errors  dropped carrier collsns  
                     14763      95       0       0       0       0        
                  3: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DORMANT group default qlen 1000
                     link/ether 44:85:00:69:18:c9 brd ff:ff:ff:ff:ff:ff
                     RX: bytes  packets  errors  dropped overrun mcast    
                     56255099   46713    0       0       0       0        
                     TX: bytes  packets  errors  dropped carrier collsns  
                     2420358    19174    0       0       0       0
                  Code:
                  ~$ inxi -ni
                  Network:   Device-1: Intel Ethernet I219-LM driver: e1000e  
                            IF: enp0s31f6 state: up speed: 100 Mbps duplex: full mac: 50:7b:9d:c9:47:4a  
                            IP v6: fe80::6442:54da:5ad1:cb35/64 type: tentative noprefixroute scope: link  
                            Device-2: Intel Wireless 8260 driver: iwlwifi  
                            IF: wlp4s0 state: up mac: 44:85:00:69:18:c9  
                            IP v4: 192.168.50.121/24 type: dynamic noprefixroute scope: global  
                            IP v6: fe80::8e5c:d300:c607:400/64 type: noprefixroute scope: link  
                            WAN IP: ;; connection timed out; no servers could be reached


                  Last edited by TwoFistedJustice; Apr 28, 2022, 11:36 AM.

                  Comment


                    #10
                    Well at least you have a driver listed
                    I219-LM driver: e1000e
                    Do you have a firewall installed or running?

                    Comment


                      #11
                      My desktop has the I219-LM with the e1000e driver.

                      Warning... a long story ... it might be wise to skip to the last paragraph.

                      This ethernet device has had periods of unreliability, after months of no problems. The connection just goes away for a while. The problem is a hardware fault which only some systems provoke. It seemed to be mostly manifested in server applications; I participated in a forum discussions with mostly server folks.
                      1. I can shorten how long it is down by disconnecting using the Networks applet, the reconnecting after about 30 seconds, but if I try that too soon it doesn't work.
                      2. It is much improved with the latest driver, though the driver can't fix it, just mitigate it.
                      3. It happens less often if it gets woken up regularly. I run
                      Code:
                      nohup ping -i 4 192.168.1.1 &>> ping.log &
                      disown
                      (192.168.1.1 is my router, the ping is a few ms). The log file is handy if a video is buffering, because I can check it to see if the pings are happening, and if they are the buffering is network congestion or a slow site.

                      I suggest installing "ethtool" if you haven't already got it, and running
                      Code:
                      ethtool -i enp0s31f6
                      This will show the version of the driver. For some reason the Linux kernel only has a driver from 2016, 3.2.6-k. The latest available is 3.8.7 (3.8.4 from the Intel download centre).

                      If you indeed only have the 3.2.6-k driver, the adapter's reliability will improve with the later drivers. These days, it is very easy to use it because someone's set it up on github: https://github.com/koljah-de/e1000e-dkms-debian. It has to be recompiled for every new kernel, and that github project sets up DKMS to do it automatically. It has worked flawlessly for over two years for me.

                      The early days with the driver meant recompiling manually on every new kernel, and then I learnt how to set up DKMS, which usually broke every new Kubuntu release. And the driver code got broken a few times by Linux header or compiler changes. But now with the e1000e-dkms-debian project it sails past release upgrades.

                      I have spent so much time stubbornly cajoling this POS. I would have been far better off just getting another NIC.
                      Regards, John Little

                      Comment


                        #12
                        Now we might be getting somewhere . . . Very insightful Mr. Little!!!

                        Comment


                          #13
                          Code:
                          ~$ ethtool -i enp0s31f6
                          driver: e1000e
                          version: 5.13.0-40-generic
                          firmware-version: 0.13-3
                          expansion-rom-version:  
                          bus-info: 0000:00:1f.6
                          supports-statistics: yes
                          supports-test: yes
                          supports-eeprom-access: yes
                          supports-register-dump: yes
                          supports-priv-flags: yes

                          Comment


                            #14
                            So it appears you are using the built in generic kernel driver for 5.13. I would suggest trying to install the proprietary Intel driver e1000e from the link that Mr. Little provided above.

                            Comment


                              #15
                              Originally posted by TwoFistedJustice View Post
                              Code:
                              ~$ ethtool -i enp0s31f6
                              driver: e1000e
                              version: 5.13.0-40-generic
                              ...
                              For some reason I can't understand, in 2020 a change was made to the kernel source for the intel network drivers to remove the actual driver version, and just report the kernel version. Totally frustrating for someone trying to compare the version with Intel's... The kernel git log shows (what appears to me to be) a lot of activity on the kernel source, even up to a few days ago, so maybe the comparison is not valid. So the ethtool output is not useful, and neither is that from modinfo. (On my main 21.10 install ethtool and modinfo give the version nicely, but on my 22.04 clean install they don't.)

                              Given all that activity on the driver in the kernel, conceivably 22.04 would run better for you.

                              Regards, John Little

                              Comment

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