Recently, I needed to install Server 2008 R2 on my MacBook for development purposes, but I found the wireless driver doesn’t work out of the box. For anyone experiencing this, make sure you have the latest BootCamp version installed (so the drivers are present). Then, use the Server Manager, select Configuration from the left side tree, then Services. Scroll through the list until you find a service called WLAN AutoConfig. It will probably say disabled at this point, so double-click on it, set it to Automatic, then click Start. You might have to reboot, although my system enabled after a few seconds delay. At that point, Wireless networking should work much like Windows 7.