Windows 7 - Internet Working/ Lan not- working :(

Hey guys I just reformatted my pc with windows 7 ultimate. I have installed only 2 things yet.
1. Audio driver
2. Onboard Realtek NIC driver for WIn 7

I have a strange problem. I am connected through a wired connection which goes into a switch on the neighboring bldg. I can create a dial up connection and connect to the internet but I cannot connect to LAN. My LAN icon shows an exclamation mark.
The result of this is VERY SLOW DOWNLOAD SPEED. I have checked my on board nic and its working fine.

I used to get around 100 kbps average speed in Windows XP where I had both the LAN and Dial-up connections working.

But in windows 7 I can only use dialup and not LAN. It shows unidentified n/w(On diagnose it shows invalid ip4 config.)

I tried the "netsh winsock reset catalog" command but no luck.
Looking forward for Invalid ip4 address solution.

More specific info needed on your motherboard model to get the latest driver for you. There are all different kinds of S3G.

32 or 64 bit?

Gigabyte updated their drivers only like 4 days ago.

Try a Windows Update if you like. If no success, give us the info I've requested, please.

Here is the link for my mobo.
GIGABYTE - Product - Motherboard - Overview - GA-P35-S3G

Install the LAN driver, you should be good after.

GIGABYTE - Support&Download - Motherboard - Driver - GA-P35-S3G

I have already installed that driver. But the problem still persists. Moreover I have also disabled ipv6 but still no luck.

Show me the device manager with sound section maximized. Also double click the device in question and go to driver tab. Post a screenshot of these.

Going by the error you're receiving, make sure DHCP is enabled on your router.

If that doesn't help, setup a static ip on the adapter.

When u installed that driver, did the yellow exclamation mark go away?

Check the vendor website to see what LAN/Network drivers are available.

1.See the below screen. I have no problem in any drivers.
2. Yes. DHCP is enabled and started.
3. I cannot see a valid ip in ipconfig /all, all i can see is the invalid one.

Nope. It was there when I installed the driver. The same driver is available on realtek's website.

Your lan cable might be damaged. Inspect it. Plug it into a different port on the router.