: These manufacturers provide specific driver bundles for their ThinkServer or ProLiant lines through their respective support centers.

: Intel provides dedicated 64-bit drivers for their network adapters on Windows Server 2012 R2. You can find the latest official releases on the Intel Download Center . Common supported controllers include the I210, I350, and X710 series.

: For older hardware, the Microsoft Update Catalog often hosts "cab" files for network drivers that can be manually installed via Device Manager. How to Install the Drivers

: Search for your Service Tag on the Dell Support site to find specific 64-bit Intel or Broadcom NIC drivers.

: For onboard Realtek LAN chips (often found in workstation-class servers), Realtek maintains an "Auto Installation Program" for Windows Server 2012. These are available on the Realtek Download Page under the PCI GBE or USB Ethernet categories.

For a stable and secure server environment, always prioritize drivers from official manufacturer portals:

Once you have downloaded the 64-bit driver package (typically an .exe or .zip file), follow these steps to install it: Realtek PCI GBE Ethernet Family Controller Software

Downloading the correct is essential for establishing network connectivity after a fresh installation or for troubleshooting connection drops. Because Windows Server 2012 R2 is built on the Windows 8.1 kernel, finding compatible drivers often requires sourcing them directly from hardware manufacturers like Intel, Realtek, or server OEMs like Dell and HP. Official Download Sources for LAN Drivers