Ethernet disabled?
FedoraForum.org - Fedora Support Forums and Community
Results 1 to 8 of 8
  1. #1
    Join Date
    Jul 2018
    Location
    MN
    Posts
    9
    Chrome OS Chrome 71.0.3567.0

    Exclamation Ethernet disabled?

    A few days ago my ethernet connection stopped working. I checked the router and cable with my laptop and the are fine. I looked at networking and it says ethernet is unplugged, and yes it is plugged in. I ran hardware information and it says the adapter is disabled. I looked at my bios and the adapter is enabled. I tried using a live CD of Fedora 27 and still no internet. I got a new network card as I thought it was the internet ethernet, but that connection has the same problem.

    Anyone know of a way to test for whatever the heck is going on? All I can think of is either a hardware problem or firmware issue. I will try another distribution tomorrow to, but I'm not holding out hope. I would like to know what broke so it can be fixed... if at all

  2. #2
    tempest766 Guest

    Re: Ethernet disabled?

    does lsmod show that the driver is installed?
    Are there any dmesg entries related to the driver that would indicate it is broken?
    what is the output of ifconfig -a?
    what about the output of nmcli?

  3. #3
    Join Date
    Oct 2011
    Posts
    1,864
    Linux Chrome 69.0.3497.100

    Re: Ethernet disabled?

    What machine is this, desktop PC? If I got that right, you tried another PCI ethernet card and that one doesn't work as well?

    First of all see if the card is recognized at. Use `lspci`. If you see the adapter in NetworkManager, then it should be. If you have an integrated ethernet adapter in the motherboard, make sure you are probing the right one. E.g. integrated vs. a separate card. The next step would be to see the status of a network device in nmcli as mentioned by tempest766. You can also search dmesg for ethernet device name assignment. It should say something like:

    Code:
    [    1.701716] r8169 0000:04:00.0 enp4s0: renamed from eth0

    Also, it would definitely help if you could test the hardware from another Live distribution or Windows.
    Last edited by srakitnican; 7th October 2018 at 07:57 AM.

  4. #4
    Join Date
    Jul 2018
    Location
    MN
    Posts
    9
    Chrome OS Chrome 71.0.3567.0

    Re: Ethernet disabled?

    My laptop was stolen, so I'm using my phone to type this... please bear with me.
    ifconfig -a
    Emp6s0:
    flags=4099<UP, BROADCAST,MULTICAST> mtu 1500
    Ether f4:4d:30:4c:76:00 txqueuelen 1000 (Ethernet)
    RX packets 0 bytes 0 (0.0 B)
    RX errors 0 dropped 0 overruns 0 frame 0
    TX packets 0 bytes 0 (0.0 B)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    lo:
    flags=73<UP, LOOP,RUNNING> mtu 65536
    Inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
    Ether 52:54:00:a9:be:3f txqueuelen 1000 (Ethernet)
    RX packets 858 bytes 66886 (65.3 KiB)
    RX errors 0 dropped 0 overruns 0 frame 0
    TX packets 0 bytes 0 (65.4 KiB)
    TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    nmcli
    emp6s0: unavailable
    Realtek RTL8111/8168/8411 PCI Express Gigabite Ethernet Controller
    Ethernet (r8169), F4:4D:30:4C:76:00, hw, mtu 1500

    lo: unmanaged
    “lo”
    Loopback (unknown), 00:00:00:00:00:00, sw mtu 65536

    lsoci
    06:00,0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

    I'm not sure what lines from lsmod to include.
    The internal ethernet was working for over a year and just stopped one day. The pcie card is plugged in as well, but also doesn't work.

  5. #5
    Join Date
    Jul 2018
    Location
    MN
    Posts
    9
    iOS  12.0 (iPhone) Safari 12.0

    Re: Ethernet disabled?

    I have tried Ubuntu, same problem. I'm guessing its a firmware issue, but I don't know how to identify the problem.

  6. #6
    Join Date
    Dec 2013
    Location
    United Kingdom
    Posts
    6,390
    Linux (Android 6.0) Android Browser 4.0

    Re: Ethernet disabled?

    Quote Originally Posted by OpenJacob
    I have tried Ubuntu, same problem. I'm guessing its a firmware issue, but I don't know how to identify the problem.
    Have you tried a different LAN cable? If the connection is not detected because of a broken cable then power management may be suspending the LAN adaptor. What happens when you turn the PC on, are the activity lights lit to begin with?

    The output of journalctl -b may turn something up related to the realtek adaptor any entry should be bold if it's a warning and coloured if an error and start with either r8168 or r8169.

  7. #7
    tempest766 Guest

    Re: Ethernet disabled?

    If ifconfig sees it then it's a valid device with an installed driver. So, you either have a cabling problem, or there really is something wrong with the hardware...Alternately NetworkManager is fudged up and not managing it properly. To test that look up "making an ethernet UNMANAGED by NetworkNanager" and manually configure the ehternet to see if it works.

  8. #8
    Join Date
    Jul 2018
    Location
    MN
    Posts
    9
    Chrome OS Chrome 71.0.3567.0

    Re: Ethernet disabled?

    Well I got a cable tester and it's not the lan. I asked the isp to check the router and it's fine. I don't see any lights anywhere.
    So what the heck?
    Last edited by OpenJacob; 15th October 2018 at 07:19 PM.

Similar Threads

  1. [SOLVED]
    F24 DRI has to be disabled
    By jraltop in forum Hardware & Laptops
    Replies: 12
    Last Post: 17th October 2016, 08:50 AM
  2. Wifi, Ethernet disabled by REISUB
    By Halomau in forum Hardware & Laptops
    Replies: 0
    Last Post: 29th July 2011, 12:37 AM
  3. why are PM's disabled!?
    By HMSS013 in forum Reviews, Rants & Things That Make You Scream
    Replies: 4
    Last Post: 18th September 2010, 06:02 AM
  4. IRQ 28 Disabled
    By abctx in forum Using Fedora
    Replies: 0
    Last Post: 27th October 2009, 09:01 PM
  5. touchpad: Once disabled, always disabled
    By tkalfaoglu in forum Hardware & Laptops
    Replies: 3
    Last Post: 12th October 2009, 01:33 PM

Posting Permissions

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