Web pages do not open

Hello,
I am running one laptop and a desktop with Windows as OS, there are other pcs as well. I have one PLANET wireless+4-port Ethernet router which I use to connect to the internet. it's been few days that I am unable to access internet. web pages wont open. the interesting fact is that though I can't access internet, I am on my home network, I can access other pc,,have success ping tests. when I checked my connectivity icon on the notification area I got like this........
there's no value on the received portion as on sent.

(please refer the attached image below)

please rescue.....

If the browser is able to access the local network, then check settings for the firewall and/or browser.

lets see if TCP is ok first -- get a command prompt (run cmd)
First clean up TCP;
now determine what the TCP settings are

try to access using an addressnow see if DNS will find a website
if ALL this works without 'timeouts' or 'unreachable host', then try the browser again.