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Thread: No ethernet connection: hardware fault?

  1. #21
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    Default Re: No ethernet connection: hardware fault?

    Quote Originally Posted by deano_ferrari View Post
    Please post the output of
    Code:
    dmesg | grep -i "eth0|eth1"
    Also, with respect to your Intel NIC...
    Code:
    dmesg | grep e1000e
    dmesg | grep -i "eth0|eth1" reveals nothing.

    dmesg | grep eth0:
    Code:
    [    5.205334] r8169 0000:01:00.0 eth0: RTL8168evl/8111evl at 0xffffc90000d51000, 94:de:80:06:30:cf, XID 0c900800 IRQ 43
    [    5.205337] r8169 0000:01:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
    [    9.670113] r8169 0000:01:00.0 eth0: link down
    [    9.670224] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
    dmesg | grep eth1:

    Code:
    [    5.353026] e1000e 0000:05:00.0 eth1: (PCI Express:2.5GT/s:Width x1) 68:05:ca:16:37:7b
    [    5.353029] e1000e 0000:05:00.0 eth1: Intel(R) PRO/1000 Network Connection
    [    5.353042] e1000e 0000:05:00.0 eth1: MAC: 3, PHY: 8, PBA No: E46981-008
    [ 2557.300336] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
    dmesg | grep e1000e:

    Code:
    [    5.226546] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
    [    5.226547] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
    [    5.226776] e1000e 0000:05:00.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
    [    5.284416] e1000e 0000:05:00.0 0000:05:00.0 (uninitialized): registered PHC clock
    [    5.353026] e1000e 0000:05:00.0 eth1: (PCI Express:2.5GT/s:Width x1) 68:05:ca:16:37:7b
    [    5.353029] e1000e 0000:05:00.0 eth1: Intel(R) PRO/1000 Network Connection
    [    5.353042] e1000e 0000:05:00.0 eth1: MAC: 3, PHY: 8, PBA No: E46981-008

  2. #22
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    Default Re: No ethernet connection: hardware fault?

    Quote Originally Posted by deano_ferrari View Post
    Please post the output of
    Code:
    dmesg | grep -i "eth0|eth1"
    Also, with respect to your Intel NIC...
    Code:
    dmesg | grep e1000e
    Hi deano, I answered your question a few days ago. Is there anything I should add to that?

  3. #23
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    Default Re: No ethernet connection: hardware fault?

    Quote Originally Posted by jehojakim View Post
    dmesg | grep -i "eth0|eth1" reveals nothing.
    Please change “grep -i” to “grep -iE”.

    Please extend the grep “OR” to include “r8169” and “e1000e”:
    Code:
     # dmesg | grep -iE 'r8169|e1000e|eth0|eth1'
    It may be helpful to change “dmesg” to “journalctl --this-boot”

  4. #24
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    Default Re: No ethernet connection: hardware fault?

    Sorry for the delay, I dind't have access to the machine for a few days.

    The outcome of
    Code:
    dmesg | grep -iE 'r8169|e1000e|eth0|eth1'
    is
    Code:
    [    5.204726] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
    [    5.205334] r8169 0000:01:00.0 eth0: RTL8168evl/8111evl at 0xffffc90000d51000, 94:de:80:06:30:cf, XID 0c900800 IRQ 43
    [    5.205337] r8169 0000:01:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
    [    5.226546] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
    [    5.226547] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
    [    5.226776] e1000e 0000:05:00.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
    [    5.284416] e1000e 0000:05:00.0 0000:05:00.0 (uninitialized): registered PHC clock
    [    5.353026] e1000e 0000:05:00.0 eth1: (PCI Express:2.5GT/s:Width x1) 68:05:ca:16:37:7b
    [    5.353029] e1000e 0000:05:00.0 eth1: Intel(R) PRO/1000 Network Connection
    [    5.353042] e1000e 0000:05:00.0 eth1: MAC: 3, PHY: 8, PBA No: E46981-008
    [    9.670113] r8169 0000:01:00.0 eth0: link down
    [    9.670224] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
    [ 2557.300336] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
    The outcome of
    Code:
    journalctl --this-boot | grep -iE 'r8169|e1000e|eth0|eth1'
    is
    Code:
    jan 12 20:15:19 htpc kernel: r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
    jan 12 20:15:19 htpc kernel: r8169 0000:01:00.0 eth0: RTL8168evl/8111evl at 0xffffc90000d51000, 94:de:80:06:30:cf, XID 0c900800 IRQ 43
    jan 12 20:15:19 htpc kernel: r8169 0000:01:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
    jan 12 20:15:20 htpc kernel: e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
    jan 12 20:15:20 htpc kernel: e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
    jan 12 20:15:20 htpc kernel: e1000e 0000:05:00.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
    jan 12 20:15:20 htpc kernel: e1000e 0000:05:00.0 0000:05:00.0 (uninitialized): registered PHC clock
    jan 12 20:15:20 htpc kernel: e1000e 0000:05:00.0 eth1: (PCI Express:2.5GT/s:Width x1) 68:05:ca:16:37:7b
    jan 12 20:15:20 htpc kernel: e1000e 0000:05:00.0 eth1: Intel(R) PRO/1000 Network Connection
    jan 12 20:15:20 htpc kernel: e1000e 0000:05:00.0 eth1: MAC: 3, PHY: 8, PBA No: E46981-008
    jan 12 20:15:24 htpc kernel: r8169 0000:01:00.0 eth0: link down
    jan 12 20:15:24 htpc kernel: IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
    jan 12 20:15:53 htpc wicked[1048]: eth0            setup-in-progress
    jan 12 20:57:52 htpc kernel: IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
    jan 12 20:58:20 htpc wicked[2372]: eth1            setup-in-progress

  5. #25
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    Question Re: No ethernet connection: hardware fault?

    @jehojakim:

    Have you changed anything with respect to either Dnsmasq or ifplugd?
    • The relevant files are “/etc/dnsmasq.conf” and “/etc/ifplugd/ifplugd.conf”.

  6. #26
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    Default Re: No ethernet connection: hardware fault?

    No, I haven't... Didn't even know they existed...

  7. #27
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    Question Re: No ethernet connection: hardware fault?

    @jehojakim:

    Then, there's only one thing left to check — the Ethernet cable …
    • Have you tried swapping the Ethernet cable for another “known to function on another system” cable?

  8. #28
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    Default Re: No ethernet connection: hardware fault?

    Quote Originally Posted by dcurtisfra View Post
    @jehojakim:

    Then, there's only one thing left to check — the Ethernet cable …
    • Have you tried swapping the Ethernet cable for another “known to function on another system” cable?
    Hi, first of all, thank you (and others) for all your responses!

    Concerning your remark: in the first place, as I stated in my original post, when I use the same cable/switch port on a Raspberry, I get a perfect connection. Tried that again yesterday, same positive result.
    Besides that, I bought a cable tester, and tested the cable: all threads are connected the right way. So, I don't think the cable or the switch port is the problem.

    Since it's apparently hard to determine the exact problem, maybe it's time to install TW and see what happens.

  9. #29
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    Default Re: No ethernet connection: hardware fault?

    Quote Originally Posted by jehojakim View Post
    Concerning your remark: in the first place, as I stated in my original post, when I use the same cable/switch port on a Raspberry, I get a perfect connection. Tried that again yesterday, same positive result.
    Besides that, I bought a cable tester, and tested the cable: all threads are connected the right way. So, I don't think the cable or the switch port is the problem.
    Then, the Ethernet hardware in the HTPC has died …

  10. #30
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    Default Re: No ethernet connection: hardware fault?

    In the interest of exploring all avenues, you could replace NetworkManager for the openSUSE-default wicked — not only solved NetworkManager most of some sluggish behaviour via 1Gbit-Ethernet/Devolo-Powerline-Adapter/WLAN, it also seems to initialise much faster during boot, especially with ipv6 disabled system-wide. My best boot times went down from around 6 seconds to around 4s. (My record cold boot into Plasma5+network on a Core-i5-bases system is 1.378s, albeit with a custom initrd as well as cron/firewall/apparmor/plymouth/postfix etc all disabled).

    If it's really a hardware fault, nothing much will change. But who knows, maybe NetworkManager might just be able to revive your networking. Good luck!

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