I finished a modernization project where I replaced all of my 100-megabit gear with gigabit-capable gear, including my cabling and router and access points. But after I replaced my last 100-megabit switch, I found we had two Windows desktops refusing to speed up. Here’s how to fix a gigabit card only connecting at 100mbps.
First, if you know you’re not connecting at gigabit, you probably already know how to do this. But if not, here’s how to check your network speed in Windows 10. Then here’s how to fix it. After all, you want to enjoy the advantages of a gigabit LAN if you have the hardware.