"RTL8211BL-S" is not a Foxconn product, it's a Realtek network chipset/product.
If you are needing LAN drivers for a Foxconn M7PMX-S motherboard visit this Foxconn web page
, then scroll down to the bottom of the page and click on the "view detail" link.
Foxconn M7PMX-S Photo:
Or if none of the above works for you, open Device Manager, find and double-click the hardware device you need a driver for, click the Details tab, select "hardware id", and give me the hardware id string that begins with "PCI\VEN", (1st./top line of text only).