Hey guys, I just wanna let you know that if you have a "Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC (NDIS 6.0)" I recommend that you don't install the driver recommended by windows update. Once installed it disconnected me from the internet. I tried W7 troubleshoot option, but it could not solve the problem. I checked my modem, and everything was fine. So I just rolled back to my old driver, and my connection was fine again. Just letting you know.
I heard that it is best to download the updated drivers from their site (or your mobo's), not through windows update.
Here's a link (thanks to Andysweb) to get the updated drivers (Win7 compatible): [link]