Question Network cable not working on fresh Ubuntu 20.04 build in new PC

[barnyard80]

I have just installed Ubuntu 20.04 on a new PC with Asus TUF B550 motherboard.

The network cable does not give me internet access. When I plug it into a different machine it works.

There are 2 LEDs next to the network port on the new PC. When I plug in the cable, one LED lights up orange. The other flashes green. So I suspect that something is happening there.

What can I try/do to get the cable working?

 

[kanewolf]

I have just installed Ubuntu 20.04 on a new PC with Asus TUF B550 motherboard.

The network cable does not give me internet access. When I plug it into a different machine it works.

There are 2 LEDs next to the network port on the new PC. When I plug in the cable, one LED lights up orange. The other flashes green. So I suspect that something is happening there.

What can I try/do to get the cable working?

A B550 is a VERY new motherboard to get Linux support. That Realtek RTL8125B 2.5Gb Ethernet may be a problem. Do you have the right kernel version -- https://askubuntu.com/questions/121...tl8125-2-5gbe-controller-working-on-18-04-lts

 

[barnyard80]

I have this kernel, which looks like the right one:

5.4.0-26-generic

The software updater is currently download hopefully that will help, but I'll probably have to leave it overnight.

 

[barnyard80]

After the software updates, it still did not work. Is this likely to work with Debian?

 

[kanewolf]

After the software updates, it still did not work. Is this likely to work with Debian?

Unknown. The hardware is just too new. Have you searched for Linux drivers for the Realtec ethernet ? Searched the Ubuntu forums?