I am very new to Ubuntu and Linux systems so I don't really know much but my work computer is Linux. I've tried many different posts in the forum to solve this but could not solve the issue.
So after un update on 20.04, Ubuntu fails to detect the ethernet.
Network Manager is not appearing at the upper right corner when I click the settings appearing at the top-down menu: It only has VPN (stating Not set up) part showing.
I am not sure which info would help so I can add any upon request but here are some of the outputs..
Here's some of my outputs..
ifconfig -a
eno1: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether 6c:0b:84:aa:33:aa txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 20 memory 0xe7300000-e7320000
eth0: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether 6c:0b:84:aa:33:ab txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device memory 0xe7100000-e717ffff
gpd0: flags=4240<POINTOPOINT,NOARP,MULTICAST> mtu 1500
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 2905 bytes 211673 (211.6 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2905 bytes 211673 (211.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
sudo lshw -C network
*-network DISABLED
description: Ethernet interface
product: Ethernet Connection (2) I218-LM
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eno1
version: 05
serial: 6c:0b:84:aa:33:aa
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:32 memory:e7300000-e731ffff memory:e7339000-e7339fff ioport:7020(size=32)
*-network DISABLED
description: Ethernet interface
product: I210 Gigabit Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:06:00.0
logical name: eth0
version: 03
serial: 6c:0b:84:aa:33:ab
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.6.0-k firmware=3.25, 0x800005d0 latency=0 link=no multicast=yes port=twisted pair
resources: irq:18 memory:e7100000-e717ffff ioport:5000(size=32) memory:e7180000-e7183fff
cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
cat /etc/NetworkManager/NetworkManager.conf
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=true
[device]
wifi.scan-rand-mac-address=no
Also, this file doesn't exist...
cat: /etc/netplan/01-globally-managed-devices.conf: No such file or directory
Any insight would be helpful... Please let me know if any more info is needed!
Edit:
As requested, I am attaching the output, but basically the file does not exist...
cat /etc/netplan/*.yaml
cat: '/etc/netplan/*.yaml': No such file or directory
I have to note though that after multiple reboots and failed attempts... I gave up at one point, and when I returned to work computer a day later, the ethernet connection was detected again after first reboot of that day.
This is the second time I've experienced this though, so I definitely do want to know if there is a permanent solution to this...
(other than crossing my fingers every time I do an Ubuntu update, praying that this doesn't happen.... :( )
Edit2:
This wasn't a permanent solution, but it seems like applying series of these commands work after putting the file as advised in /etc/netplan/.
sudo ifconfig eth0 up
sudo service NetworkManager restart
sudo netplan generate
sudo netplan apply
reboot
The problem is that I have to apply this every single time after a reboot, but at least I think I have a way of getting my Internet back. Not sure how to make this default though
