HELP: Connected But Browser says otherwise

[algophobic]

I have a problem. My computer can't seem to connect to the internet even though my network connections says i am connected. But when I open any browser (Firefox, Google Chrome, IE), it says that the server is not found and the webpage is unavailable.

So I used another computer and connected it to the same router and modem, it worked fine and I was able to connect. What do you think is the problem? Thanks a lot.

[hellnoire]

Download the network test tool which is on the blog (either revision) and try checking your connectivity. It should tell you what's wrong... might just be it times out on you.

[Alboguy]

Maybe you're under a firewall.

[Swarup]

As Alboguy said before may be your firewall block you.