You have Bluetooth, so some of the devices may be Bluetooth devices, so you may need to install the Bluetooth Suite or disable it in the Bios if not used. Bluetooth also sets up a Network Adapter.
If you were to have a newer system, you may have something like an Intel Management Engine Interface which needs a driver.
Where have you gotten the drivers for your system so far..Windows 7 only? When I installed Windows 7 on my system, the network adapter driver was not available except by download from ASUS or from the Drivers CD.