By Manuel

Realtek 8168 Ethernet card gets r8169 kernel module by default. There is another kernel module package, r8168, for situations where r8169 does not work properly.

To check which of these is in use, the following command should show it:

lsmod | grep r816

To use r8168, install package r8168 and reboot.

To use r8169, uninstall package r8168 and reboot.