Not able to connect the net after updating my Mac

[fakhir]

Hi All,

I just got a MTNL broadband wifi connection for my mac 10.5 leopard.
The configration process went fine and my mac was connected to web untill I updated my system. Now after updating my system I am not able to open any web page or messenger etc. though the connection part is showing properly.
what should I do..??
A prompt help will be appreciated....
Thanks & Regards,

 

[BlueRevolution]

Are you connected to the right network? Silly question, but it happens.