My PC has a network card or a Realtek 2.5GbE Network card. For a long time, I am using the network driver provided by Microsoft, which is from Windows 11. Recently, I think I can try the Realteck official driver, and see how much difference. Setup testing environment iperf3 server
I am doing some network changes in my house. I will discuss it later with another post. Here I would like to show you how Windows Driver may slow down your ethernet connection. Testing Setup I use iperf3 as my testing tool. You can download it from the official site.