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Ethernet connection on my Arch system suddenly stopped working. I occasionally run Windows 10 on the same PC and it works fine on that.
Here's the output of ip link.
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 1c:c1:de:a9:58:e6 brd ff:ff:ff:ff:ff:ff
3: wlp68s0b1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
link/ether 00:17:93:d7:8c:fc brd ff:ff:ff:ff:ff:ff
And dmesg | grep e1000e
[ 4.351028] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 4.351032] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 4.352682] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[ 4.585470] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) 1c:c1:de:a9:58:e6
[ 4.585477] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection
[ 4.585528] e1000e 0000:00:19.0 eth0: MAC: 9, PHY: 10, PBA No: FFFFFF-0FF
[ 4.721794] e1000e 0000:00:19.0 enp0s25: renamed from eth0
[ 6.618287] e1000e: enp0s25 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 6.618300] e1000e 0000:00:19.0 enp0s25: 10/100 speed: disabling TSO
Drivers are loaded and the ethernet link is UP but websites are not loaded and I'm unable to ping Google.
> ping 8.8.8.8
connect: Network is unreachable
> ping www.google.com
ping: www.google.com: Name or service not known
Is there anything else I could check?
Last edited by jrl (2016-06-09 11:55:26)
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What are the output of ip addr and ip route ?
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What are the output of ip addr and ip route ?
No output from ip route.
> ip route
> ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 1c:c1:de:a9:58:e6 brd ff:ff:ff:ff:ff:ff
inet6 fe90::92b8:1e0a:b97a:a210/86 scope link
valid_lft forever preferred_lft forever
3: wlp68s0b1: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 00:17:93:d7:8c:fc brd ff:ff:ff:ff:ff:ff
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How is your network configured? DHCP (dynamic) or static?
Just a thought: A few days ago, systemd got updated. Do you use systemd-networkd and your configuration was messed up?
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You have no IP addresses assigned to your ethernet connection.
This should bring you up immediately:
# dhcpcd enp0s25
By which method are you managing your connection?
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How is your network configured? DHCP (dynamic) or static?
Just a thought: A few days ago, systemd got updated. Do you use systemd-networkd and your configuration was messed up?
I pretty sure I'm using DHCP. I think I ran a full system update on 3rd and did not have ethernet connection when I booted the system again on 6th. I have the start job issue with dhcpcd (https://bbs.archlinux.org/viewtopic.php?id=213363).
You have no IP addresses assigned to your ethernet connection.
This should bring you up immediately:
# dhcpcd enp0s25
By which method are you managing your connection?
dhcpcd times out and doesn't seem to change anything.
enp0s25: hardware address ... claims 0.0.0.0
enp0s25: soliciting a DHCP lease
enp0s25: offered ... from ...
enp0s25: probing address ...
timed out
dhcpcd exited
Last edited by jrl (2016-06-08 12:21:05)
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I pretty sure I'm using DHCP
What is the output of:
systemctl list-unit-files | grep enabled
Can you assign the IP addresses manually?
https://wiki.archlinux.org/index.php/Ne … assignment
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Or even
systemctl list-unit-files --state enabled
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dhcpcd times out and doesn't seem to change anything.
enp0s25: hardware address ... claims 0.0.0.0 enp0s25: soliciting a DHCP lease enp0s25: offered ... from ... enp0s25: probing address ... timed out dhcpcd exited
IBM Lenovo T430
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I just downgraded the DHCP client and ethernet works again. Thanks a lot everyone!
Last edited by jrl (2016-06-09 11:54:05)
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