Ethernet performance is limited to half the speed on your PC, while it functions normally on other devices.
Ethernet performance is limited to half the speed on your PC, while it functions normally on other devices.
You're using Windows 11 on a Gigabyte X570I AORUS PRO WIFI motherboard. You're running Ethernet due to weak Wi-Fi, and you're seeing about 400 Mbps. Testing with other PCs confirmed the speed, so the cable or router isn't the problem. The LED indicates Gbps when it should be full speed. You updated the BIOS from Gigabytes' website, which suggests a firmware issue might be involved. Booting from Linux with a USB stick also showed the same speed, supporting that hardware is likely the cause. It's still getting some data rate, but not optimal. Consider checking the network adapter settings or contacting Gigabyte for further diagnostics.
Open the start menu and type "ncpa.cpl". Navigate to your network adapter, then go to Properties, Configure, and adjust the speed settings. Set it to full duplex or choose a speed like 1GB/s, 10/100, or 100/1000 Mbps to reach maximum performance. If the adapter isn't set correctly, you might need to change its configuration. An image of the setup can help illustrate the changes. In your case, pick 1.0 GBPS full duplex.
Didn't resolve the issue. Conducted a speed test using both full duplex at 1 GBPS and auto negotiation. Results were consistent. Performed tests on multiple sites, yielding speeds between 100-500 Mbps. Speedtest.net displayed the highest. I plan to verify with another machine tomorrow to confirm it's not related to the cable.
presently receive 500 Mbps, aiming for the complete 1000 the others can achieve in the house.