[solved] wired connection issue with network manager

olocin · 2019-09-03 21:40:02

I have a problem connecting my laptop to a specific wired network (other wired networks work fine).
It fails either with or without network manager enabled.
Here's the log using network manager

$ nmcli conn up Wired
Error: Connection activation failed: IP configuration could not be reserved (no available address, timeout, etc.)
Hint: use 'journalctl -xe NM_CONNECTION=87a4174c-81a2-33a4-bc3e-9ac6b13d270c + NM_DEVICE=enp0s31f6' to get more details.

which gives

NetworkManager[479]: <info>  [1567513219.0522] manager: (enp0s31f6): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2)
NetworkManager[479]: <info>  [1567513219.0612] device (enp0s31f6): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
NetworkManager[479]: <info>  [1567513222.1164] device (enp0s31f6): carrier: link connected
NetworkManager[479]: <info>  [1567513222.1167] device (enp0s31f6): state change: unavailable -> disconnected (reason 'carrier-changed', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513222.1182] device (enp0s31f6): Activation: starting connection 'Wired' (87a4174c-81a2-33a4-bc3e-9ac6b13d270c)
NetworkManager[479]: <info>  [1567513222.1184] device (enp0s31f6): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513222.2455] device (enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513222.2467] device (enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513222.2473] dhcp4 (enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
NetworkManager[479]: <info>  [1567513226.0660] device (enp0s31f6): carrier: link connected
NetworkManager[479]: <info>  [1567513260.5697] device (enp0s31f6): state change: ip-config -> deactivating (reason 'user-requested', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513260.5727] device (enp0s31f6): state change: deactivating -> disconnected (reason 'user-requested', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513260.5894] dhcp4 (enp0s31f6): canceled DHCP transaction
NetworkManager[479]: <info>  [1567513260.5895] dhcp4 (enp0s31f6): state changed unknown -> done
NetworkManager[479]: <info>  [1567513284.1344] device (enp0s31f6): Activation: starting connection 'Wired' (87a4174c-81a2-33a4-bc3e-9ac6b13d270c)
NetworkManager[479]: <info>  [1567513284.1348] device (enp0s31f6): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513284.2597] device (enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513284.2624] device (enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513284.2635] dhcp4 (enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
NetworkManager[479]: <info>  [1567513288.1433] device (enp0s31f6): carrier: link connected
NetworkManager[479]: <warn>  [1567513329.6560] dhcp4 (enp0s31f6): request timed out
NetworkManager[479]: <info>  [1567513329.6561] dhcp4 (enp0s31f6): state changed unknown -> timeout
NetworkManager[479]: <info>  [1567513329.6858] dhcp4 (enp0s31f6): canceled DHCP transaction
NetworkManager[479]: <info>  [1567513329.6859] dhcp4 (enp0s31f6): state changed timeout -> done
NetworkManager[479]: <info>  [1567513329.6867] device (enp0s31f6): state change: ip-config -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed')
NetworkManager[479]: <warn>  [1567513329.6911] device (enp0s31f6): Activation: failed for connection 'Wired'
NetworkManager[479]: <info>  [1567513329.6917] device (enp0s31f6): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513329.6973] device (enp0s31f6): Activation: starting connection 'Wired' (87a4174c-81a2-33a4-bc3e-9ac6b13d270c)
NetworkManager[479]: <info>  [1567513329.6975] device (enp0s31f6): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513329.8264] device (enp0s31f6): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513329.8295] device (enp0s31f6): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
NetworkManager[479]: <info>  [1567513329.8308] dhcp4 (enp0s31f6): activation: beginning transaction (timeout in 45 seconds)
NetworkManager[479]: <info>  [1567513333.5405] device (enp0s31f6): carrier: link connected

What is going on?

Last edited by olocin (2019-09-04 17:22:16)

seth · 2019-09-04 06:45:44

It fails either with or without network manager enabled.

Do you suggest to run multiple network managing daemons concurrently?

Otherwise try dhcpcd or dhclient, https://wiki.archlinux.org/index.php/Ne … HCP_client

If that doesn't work either, please post a complete journal (sudo journalctl -b) because the carrier looks unstable in that filter, but that's hard to judge w/o knowing what's going on around (in particular whether another dhcp client is banging the NIC)

olocin · 2019-09-04 08:27:04

No, I'm not running multiple network managing daemons concurrently.
Will post complete journal later.

olocin · 2019-09-04 17:22:01

Turns out it's a mac address issue, sorry for wasting your time.

hegdec · 2021-02-22 09:25:30

olocin wrote:

Turns out it's a mac address issue, sorry for wasting your time.

May I know what was the issue with the MAC address? Me too facing the same issue and log messages are similar.

seth · 2021-02-22 13:14:55

Possibly https://wiki.archlinux.org/index.php/Ne … domization or he had a MAC filter in the router.

Arch Linux

#1 2019-09-03 21:40:02

[solved] wired connection issue with network manager

#2 2019-09-04 06:45:44

Re: [solved] wired connection issue with network manager

#3 2019-09-04 08:27:04

Re: [solved] wired connection issue with network manager

#4 2019-09-04 17:22:01

Re: [solved] wired connection issue with network manager

#5 2021-02-22 09:25:30

Re: [solved] wired connection issue with network manager

#6 2021-02-22 13:14:55

Re: [solved] wired connection issue with network manager

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