Ubuntu 20.04.3 LTS server installation wants to use wifi instead of ethernet

cn flag

I wanted to install Ubuntu 20.04.3 LTS Server but everytime I get to the network connections it shows only wifi even tho I already plugged in an ethernet cable, it also wont show any way to set it to ethernet. I continued without a network connection but then I dont have access to internet even after trying to enable it with /etc/network/interface but ifup isnt pre-installed and when checking eth0 it wont find it.

network connection tab

How do I make it use ethernet?

David avatar
cn flag
Better question why does it not see the Ethernet connect? Are the activity lamps on the card active?
br flag
is the leds on your ethernet cable lit in both the ends of your cable?
xayem avatar
cn flag
the led on the card is blinking, my router/modem has no leds
ChanganAuto avatar
us flag
How new is the hardware? Which Ethernet chip specifically? Some newer Ethernet chips didn't have native support in Ubuntu 20.04.
xayem avatar
cn flag
Hardware came out 1 year ago (MSI H510I Pro WIFI) and the ethernet chip is Realtek RTL8125B. I bought it about 3 weeks ago.
cn flag

I managed to solve it like this:

First I checked the network devices

lshw -C network

It said that my network device is UNCLAIMED so I searched for a driver for my network chip, found and followed this:

after reboot it finally worked as intended.


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