Results 1 to 8 of 8

Thread: Dead ethernet adapted

  1. #1
    Join Date
    Jan 2011
    Beans
    10

    Dead ethernet adapted

    Hi,

    This is my first post and I'm fairly new to Ubuntu.

    I'm running 10.10 on an integrated mini-ITX board, the Asus at3iont-i deluxe. On my first install, everything worked out of the box, and I was able to setup all I wanted, with valuable help from http://ubuntuforums.org/showthread.php?t=1458300 .

    For various reasons, I did a complete reinstall of 10.10, and after that my onboard Ethernet adapter is completely unresponsive. When I plug it in, the little light on the router does not indicate a connection (but it does if I put my laptop on the same cable).

    The Gnome NetworkManager does not show a connection. I'm not sure what to check, but
    Code:
    lspci | grep Ethernet
    yields
    Code:
    04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
    Also,
    Code:
    ifconfig
    gives
    Code:
    eth0      Link encap:Ethernet  HWaddr 20:cf:30:bb:67:87  
              UP BROADCAST MULTICAST  MTU:1500  Metric:1
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
              Interrupt:43 Base address:0xe000
    and both
    Code:
    ifdown eth0
    and
    Code:
    ifup eth0
    give error messages about eth0 being unknown or not configured.

    Any help would be greatly appreciated. Oh and by the way, the onboard wlan works fine.

  2. #2
    Join Date
    Sep 2006
    Location
    Pune
    Beans
    319
    Distro
    Ubuntu Development Release

    Re: Dead ethernet adapted

    Can you post the output of:

    /etc/network/interfaces
    Anubhav Rakshit

  3. #3
    Join Date
    Jan 2011
    Beans
    4

    Re: Dead ethernet adapted

    hello alexbj,

    have you looked up /etc/network/interfaces ?
    i believe the "ifconfig /-up/-down" program uses this file to check for interfaces and decide which to start up on booting.

    i think it should have an entry like:

    auto eth0
    iface eth0 inet manual

    hope it helps.

    regards.

  4. #4
    Join Date
    Jan 2011
    Beans
    10

    Re: Dead ethernet adapted

    Hi and thanks for the quick reply.

    Code:
    cat /etc/network/interfaces
    only yields
    Code:
    auto lo
    iface lo inet loopback
    but I get the same output on my laptop, where the ethernet adapter is working fine, so I'm guessing this is not so relevant. Thanks though.

  5. #5
    Join Date
    Jan 2011
    Beans
    10

    Re: Dead ethernet adapted

    Quote Originally Posted by schalkefan View Post
    hello alexbj,

    have you looked up /etc/network/interfaces ?
    i believe the "ifconfig /-up/-down" program uses this file to check for interfaces and decide which to start up on booting.

    i think it should have an entry like:

    auto eth0
    iface eth0 inet manual

    hope it helps.

    regards.
    Adding the suggested lines to /etc/network/interfaces seems to have as only effect that the Gnome NetworkManager says "device not managed" instead of "not connected" under Wired Network. So I removed these lines again.

  6. #6
    Join Date
    Jan 2011
    Beans
    10

    Re: Dead ethernet adapted

    Quote Originally Posted by anubhavrocks View Post
    Can you post the output of:

    /etc/network/interfaces
    Do you think I should modify this file in some other manner to force the activation of the ethernet adapter?

    Cheers
    Alex

  7. #7
    Join Date
    Jan 2011
    Beans
    10

    Re: Dead ethernet adapted

    Quote Originally Posted by anubhavrocks View Post
    Can you post the output of:

    /etc/network/interfaces
    Do you think I should modify this file in some other manner to force the activation of the ethernet adapter?

    Cheers
    Alex

    EDIT: sorry about the double posting... didn't realize the first one had worked.
    Alex
    Last edited by alexbj; January 19th, 2011 at 08:17 AM. Reason: double post

  8. #8
    Join Date
    Jan 2011
    Beans
    10

    Re: Dead ethernet adapted

    Hi guys,

    Found this thread http://ubuntuforums.org/showthread.php?t=1525455, and its solution worked!

    Strange though, cause the card has never been anywhere near a windows installation, and as far as I can remember I've never put it to sleep from Ubuntu either.

    So, it turned out the card was not dead, it was merely in a "deep sleep". Thanks for the help.

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
  •