Solved Problem with connection to wireless router

[sivakishanv]

In my office, I setup a Cisco wireless router WVRS4400n model. There is wireless laptop and a desktop system (with wireless adapter) and a wireless printer.
I was able to connect to desktop and printer and browse the internet too.

But the problem is with the laptop. When I connect laptop to the router, it says that it is "connected" but I was not able to browse the internet at all. I have tried many ways but not able to browse the internet even the connection shows that it is connected.

Operating system is Windows 7 Home premium 64bit
plz help me out!!

 

[2xg]

Hi there and Welcome to SF,

Please try the following suggestions, there's no need to move on to the next task if it works:

Disable any Firewall or Security Software for now.

Remove all wireless network stored in your computer, then re-add your own SSID. If the network is secured, make sure to type in the correct network key.
http://www.sevenforums.com/tutorials/120670-wireless-network-remove.html

Make sure that DHCP is enabled both in your wired and wireless settings and 'Obtain DNS server address automatically' is also enabled.
Setting Up a DHCP Ethernet Connection in Windows Vista/7 - Virginia Tech Knowledge Base [answers.vt.edu]

Verify that you're not using any Proxy Servers, remove if found.
How to Remove a Proxy Server | eHow.com

If above suggestions didn't work at all, please provide us an output of your computer's ipconfig /all: