"Realtek PCIe GBE Windows 7/Server 2008 R2 Auto Installation Program." 3. Dell/HP/Lenovo Enterprise Servers
Workaround: If you can't get online to update, you must find an older "SHA-1" signed driver from roughly 2015–2017. Step 4: Installation Process
Most drivers come as an .exe . Run it as Administrator. Manual Update (if .exe fails): Right-click the "Ethernet Controller" in Device Manager. Select Update Driver Software . Choose Browse my computer for driver software .