The problem
Hello, I recently ran my Ubuntu computer after longer time, get updates, reboot and wired network stopped working. Previous version was some 20.04 too. Don't know exact version.
I have no connection and popup informing about failed connection update is appearing periodically.
Update 2021-06-14
I found that connection works after cool start (Shutdown -> Start), but not after reboot.
As @heynnema pointed out this is problem with integrated RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
on my motherboard B85-G41 PC Mate(MS-7850)
. See the solution,
Logs and stuff
$ inxi -Fx
System: Host: ****** Kernel: 5.8.0-53-generic x86_64 bits: 64 compiler: N/A Desktop: Gnome 3.36.7
Machine: Type: Desktop System: MSI product: MS-7850 v: 1.0 serial: <superuser/root required>
Mobo: MSI model: B85-G41 PC Mate(MS-7850) v: 1.0 serial: <superuser/root required> UEFI: American Megatrends v: 2.9
Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: Micro-Star MSI driver: r8169 v: kernel
port: d000 bus ID: 03:00.0
IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: d8:cb:8a:c6:f6:d8
$ lshw -C network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 0c
serial: d8:cb:8a:c6:f6:d8
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.8.0-53-generic duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
resources: irq:17 ioport:d000(size=256) memory:f7100000-f7100fff memory:f2100000-f2103fff
It's trying to connect, but the popup mentioned on beginning is shown (can't write exact message it flashes quickly).
$ tail -f /var/log/syslog (edited)
NetworkManager[1052]: <info> [1622575610.6830] device (enp3s0): Activation: starting connection 'Wired connection 1' (baec95cb-6dc1-4f0e-9f03-449a60f01d9e)
NetworkManager[1052]: <info> [1622575610.6831] audit: op="connection-activate" uuid="baec95cb-6dc1-4f0e-9f03-449a60f01d9e" name="Wired connection 1" pid=1585 uid=1000 result="success"
NetworkManager[1052]: <info> [1622575610.6833] device (enp3s0): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
NetworkManager[1052]: <info> [1622575610.6848] device (enp3s0): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
NetworkManager[1052]: <info> [1622575610.6854] device (enp3s0): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
NetworkManager[1052]: <info> [1622575610.6860] dhcp4 (enp3s0): activation: beginning transaction (timeout in 45 seconds)
avahi-daemon[1047]: Joining mDNS multicast group on interface enp3s0.IPv6 with address fe80::c201:e5e1:9239:f63.
avahi-daemon[1047]: New relevant interface enp3s0.IPv6 for mDNS.
avahi-daemon[1047]: Registering new address record for fe80::c201:e5e1:9239:f63 on enp3s0.*.
NetworkManager[1052]: <info> [1622575611.9842] dhcp6 (enp3s0): activation: beginning transaction (timeout in 45 seconds)
kernel: [ 1859.560671] r8169 0000:03:00.0 enp3s0: rtl_rxtx_empty_cond == 0 (loop: 42, delay: 100).
kernel: [ 1885.671779] r8169 0000:03:00.0 enp3s0: rtl_rxtx_empty_cond == 0 (loop: 42, delay: 100).
NetworkManager[1052]: <warn> [1622575656.0903] dhcp4 (enp3s0): request timed out
NetworkManager[1052]: <info> [1622575656.0903] dhcp4 (enp3s0): state changed unknown -> timeout
NetworkManager[1052]: <warn> [1622575657.0859] dhcp6 (enp3s0): request timed out
NetworkManager[1052]: <info> [1622575657.0860] dhcp6 (enp3s0): state changed unknown -> timeout
NetworkManager[1052]: <info> [1622575657.0861] device (enp3s0): state change: ip-config -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed')
NetworkManager[1052]: <warn> [1622575657.0883] device (enp3s0): Activation: failed for connection 'Wired connection 1'
NetworkManager[1052]: <info> [1622575657.0888] device (enp3s0): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
avahi-daemon[1047]: Withdrawing address record for fe80::c201:e5e1:9239:f63 on enp3s0.
avahi-daemon[1047]: Leaving mDNS multicast group on interface enp3s0.IPv6 with address fe80::c201:e5e1:9239:f63.
avahi-daemon[1047]: Interface enp3s0.IPv6 no longer relevant for mDNS.
NetworkManager[1052]: <info> [1622575657.1070] dhcp4 (enp3s0): canceled DHCP transaction
NetworkManager[1052]: <info> [1622575657.1071] dhcp4 (enp3s0): state changed timeout -> done
NetworkManager[1052]: <info> [1622575657.1073] dhcp6 (enp3s0): canceled DHCP transaction
NetworkManager[1052]: <info> [1622575657.1073] dhcp6 (enp3s0): state changed timeout -> done
NetworkManager[1052]: <info> [1622575657.1121] policy: auto-activating connection 'Wired connection 1' (baec95cb-6dc1-4f0e-9f03-449a60f01d9e)
I tried
(The PC is connected via USB Wifi dongle now)
$ sudo rmmod r8169
$ sudo modprobe r8169
$ sudo apt install r8168-dkms
(reboot - doesn't work - so removed)
$ sudo apt purge r8168-dkms
Also I removed the original Wired connection profile and replaced it by a new one with following settings:
sudo dmidecode -s bios-version
and confirm that your motherboard is MSI model: B85-G41 PC Mate(MS-7850) v: 1.0.$ sudo dmidecode -s bios-version
V2.9
(Latest). Don't know how to check version, but yes it's B85-G41 PC Mate