Activation of network connection failed since latest 20.04 patch

Asked by Charles-Antoine Gagnon

Hi, I did a full update of my system yesterday Jan 23rd and since then, my wired network is not working and notification says : "Activation of network connection failed"

Network card on my MSI GP-73 Leonard 8RE :
05:00.0 Ethernet controller [0200]: Qualcomm Atheros Killer E2400 Gigabit Ethernet Controller [1969:e0a1] (rev 10)

Kernel :
Linux version 5.4.0-64-generic (buildd@lcy01-amd64-021) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #72-Ubuntu SMP Fri Jan 15 10:27:54 UTC 2021

Troubleshooting done :
Add static address to make sure it's not DHCP issue
Disable/Enable the Network Connection
reload/re-install network-manager
Manually removed my connection from nm-connection-editor

From syslog :
Jan 24 08:55:26 johnny-GP73 NetworkManager[970]: <info> [1611496526.9468] device (enp5s0): Activation: starting connection 'Wired connection 1' (e5177cba-1e64-47a2-a0dc-d27b2d6c18b7)
Jan 24 08:55:26 johnny-GP73 NetworkManager[970]: <info> [1611496526.9471] audit: op="connection-activate" uuid="e5177cba-1e64-47a2-a0dc-d27b2d6c18b7" name="Wired connection 1" pid=2305 uid=1000 result="success"
Jan 24 08:55:26 johnny-GP73 NetworkManager[970]: <info> [1611496526.9474] device (enp5s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Jan 24 08:55:26 johnny-GP73 NetworkManager[970]: <info> [1611496526.9485] device (enp5s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan 24 08:55:26 johnny-GP73 NetworkManager[970]: <info> [1611496526.9507] device (enp5s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Jan 24 08:55:26 johnny-GP73 NetworkManager[970]: <info> [1611496526.9516] dhcp4 (enp5s0): activation: beginning transaction (timeout in 45 seconds)
Jan 24 08:56:12 johnny-GP73 NetworkManager[970]: <warn> [1611496572.1183] dhcp4 (enp5s0): request timed out
Jan 24 08:56:12 johnny-GP73 NetworkManager[970]: <info> [1611496572.1184] dhcp4 (enp5s0): state changed unknown -> timeout
Jan 24 08:56:12 johnny-GP73 NetworkManager[970]: <info> [1611496572.1185] device (enp5s0): state change: ip-config -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed')
Jan 24 08:56:12 johnny-GP73 NetworkManager[970]: <warn> [1611496572.1216] device (enp5s0): Activation: failed for connection 'Wired connection 1'
Jan 24 08:56:12 johnny-GP73 NetworkManager[970]: <info> [1611496572.1226] device (enp5s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Jan 24 08:56:12 johnny-GP73 NetworkManager[970]: <info> [1611496572.1247] dhcp4 (enp5s0): canceled DHCP transaction
Jan 24 08:56:12 johnny-GP73 NetworkManager[970]: <info> [1611496572.1247] dhcp4 (enp5s0): state changed timeout -> done
Jan 24 08:56:41 johnny-GP73 NetworkManager[970]: <info> [1611496601.1153] policy: auto-activating connection 'Wired connection 1' (e5177cba-1e64-47a2-a0dc-d27b2d6c18b7)
Jan 24 08:56:41 johnny-GP73 NetworkManager[970]: <info> [1611496601.1158] device (enp5s0): Activation: starting connection 'Wired connection 1' (e5177cba-1e64-47a2-a0dc-d27b2d6c18b7)
Jan 24 08:56:41 johnny-GP73 NetworkManager[970]: <info> [1611496601.1159] device (enp5s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Jan 24 08:56:41 johnny-GP73 NetworkManager[970]: <info> [1611496601.1164] device (enp5s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jan 24 08:56:41 johnny-GP73 NetworkManager[970]: <info> [1611496601.1171] device (enp5s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Jan 24 08:56:41 johnny-GP73 NetworkManager[970]: <info> [1611496601.1173] dhcp4 (enp5s0): activation: beginning transaction (timeout in 45 seconds)
Jan 24 08:57:26 johnny-GP73 NetworkManager[970]: <warn> [1611496646.1147] dhcp4 (enp5s0): request timed out
Jan 24 08:57:26 johnny-GP73 NetworkManager[970]: <info> [1611496646.1147] dhcp4 (enp5s0): state changed unknown -> timeout

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Charles-Antoine Gagnon
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Charles-Antoine Gagnon (chagagno) said :
#1

When I assing a static IP, I can ping it for few seconds and then I get the notification : Activation of network connection failed and the ping goes Network unreachable. Within that lapse of time, I can only ping the static IP, not the gateway nor anything else.

And BTW my WI-fi interface is working fine, no issue at all.

Revision history for this message
Charles-Antoine Gagnon (chagagno) said :
#2

Damn .. my child unplugued the cable behind one of my switch ... issue resolved