GNU/Linux Realtek RTL8111x Setup – Step-by-step Guide
Hi! The Tutorial shows you Step-by-Step How to Install Realtek RTL8111x Wireless Driver in GNU/Linux Distributions.
And the original Realtek Driver should support all the following PCI Express 10/100/1000M Gigabit Ethernet Adapters:
And again also the PCI Express 10/100M Fast Ethernet Interfaces:
Please be aware of how this Driver is Not supporting all the Linux Kernels range, so in case of issue consult the available Online Documentation.
So as a possible Solution, then you may also see: How to Install New Kernel Guide.
Again, in case of Issue for preventing any possible Driver loading Interference you should also take into account: How to Blacklist Kernel Modules.