Results 1 to 3 of 3

Thread: eno1 interface has disappeared, ethernet 'unclaimed'

  1. #1
    Join Date
    Jan 2019
    Beans
    6

    eno1 interface has disappeared, ethernet 'unclaimed'

    I'm using Ubuntu 20.04.1 LTS which uses NetworkManager to manage internet connections.

    For a while, everything was fine with my computer - ethernet worked as plug & play - but recently I created a new, separate account on it, and, since I was leaving for a while, set up ssh access to it. This involved setting a static ip using netplan. My netplan configuration (at `/etc/netplan/01-network-manager-all.yaml`) looks like this, then:

    Code:
    network:
      version: 2
      renderer: NetworkManager
      ethernets:
        eno1:
          dhcp4: no
          addresses:
            - 192.168.0.69/24
          gateway4: 192.168.0.1
          nameservers:
            addresses: [8.8.8.8, 1.1.1.1]
    I'm aware this may be a possible cause of the problem I'm having, but I'm not certain.

    Anyway, after a couple of days, I stopped being able to ssh into my computer. This was because, for whatever reason, Ubuntu had decided that the ethernet interface `eno1` had disappeared. After getting someone to change port forwarding rules so I could ssh via WiFi, I found that `ifconfig` gives:

    Code:
    lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
            inet 127.0.0.1  netmask 255.0.0.0
            inet6 ::1  prefixlen 128  scopeid 0x10<host>
            loop  txqueuelen 1000  (Local Loopback)
            RX packets 178597  bytes 15686085 (15.6 MB)
            RX errors 0  dropped 0  overruns 0  frame 0
            TX packets 178597  bytes 15686085 (15.6 MB)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    
    wlx200db0187d26: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
            inet 192.168.0.15  netmask 255.255.255.0  broadcast 192.168.0.255
            inet6 fe80::536:3e32:5a6f:df0a  prefixlen 64  scopeid 0x20<link>
            ether 20:0d:b0:18:7d:26  txqueuelen 1000  (Ethernet)
            RX packets 358159  bytes 114355653 (114.3 MB)
            RX errors 0  dropped 17  overruns 0  frame 0
            TX packets 609759  bytes 486071543 (486.0 MB)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

    What's interesting about this is that there is a mention of `Ethernet`, but I don't know what this means in this context - does it mean that the wireless adapter is acting as an ethernet adapter and I am in fact accessing my computer via ethernet? Or does it mean something else entirely?

    Obviously my adapter can't have just disappeared - as shown by the output of `lshw -C network`:

    Code:
    *-network UNCLAIMED       
           description: Ethernet controller
           product: 82579LM Gigabit Network Connection (Lewisville)
           vendor: Intel Corporation
           physical id: 19
           bus info: pci@0000:00:19.0
           version: 04
           width: 32 bits
           clock: 33MHz
           capabilities: pm msi cap_list
           configuration: latency=0
           resources: memory:f7100000-f711ffff memory:f7139000-f7139fff ioport:f040(size=32)
      *-network
           description: Wireless interface
           physical id: 1
           bus info: usb@1:1.1
           logical name: wlx200db0187d26
           serial: 20:0d:b0:18:7d:26
           capabilities: ethernet physical wireless
           configuration: broadcast=yes driver=mt7601u driverversion=5.4.0-52-generic firmware=N/A ip=192.168.0.15 link=yes multicast=yes wireless=IEEE 802.11
    I think the `UNCLAIMED` here might be a clue to solving this, but after searching through the internet and trying a billion different solutions, none of them seem to have fixed it. Advice would be very much appreciated, thank you.

  2. #2
    Join Date
    Aug 2005
    Location
    South Carolina, USA
    Beans
    25,623
    Distro
    Ubuntu Development Release

    Re: eno1 interface has disappeared, ethernet 'unclaimed'

    May we solve this on your already posted question on Ask Ubuntu?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

  3. #3
    Join Date
    Jan 2019
    Beans
    6

    Re: eno1 interface has disappeared, ethernet 'unclaimed'

    >May we solve this on your already posted question on Ask Ubuntu?


    Indeed, I just posted here as a secondary resource in case I didn't get an answer from AskUbuntu. For reference: https://askubuntu.com/questions/1287...rnet-unclaimed

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •