После обновления ядра с 3.10.0-957 на 3.10.0-1062 сетевая карта REALTEK не поднялась.
Лечение:
lsmod reveals that module r8169 is loaded, but module realtek is not.
# rmmod r8169 # modprobe r8169 # systemctl restart network.service
fixes the problem temporarily, but this does not survive a reboot.
# echo realtek >/etc/modules-load.d/realtek.conf
fixes the problem and survives a reboot.