This will not "survive" a kernel rebuild. I ran:

apt-get update
apt-get upgrade

And had to reinstall the driver afterwards as show below. Its also stated in the reference link.

https://discourse.ubuntu.com/t/realtek-rtl8125-ubuntu-24-04-ethernet-fix-r8125-new-driver-purge-r8125-dkms/59143

Network card name can vary, eno1 is a possibility, mine is ens2p0


sudo apt purge r8125-dkms
sudo reboot

tar -xvf r8125-9.016.01.tar
cd r8125-9.016.01
sudo ./autorun.sh
(ignore a few errors)
sudo reboot

sudo ethtool -i eno1

vi /etc/netplan/01-netcfg.yaml

netplan apply
01-netcfg.yaml
network:
  version: 2
  ethernets:
    eno1:
      dhcp4: true


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ZIP-arkiv r8125-9.016.01.tar.bz2 16-03-2026 by Normann P. Nielsen

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