i got ip from dhcp,but i can't ping
 

hi, i'm using ubuntu hardy,i connect to wirelesslan through ndiswrapper, until last week everythig goes fine,i tried to share internet from ubuntu to windows,but aftr tat i can't ping any websites even dhcp server also,plaese help me..........

I need more information to help you :) What exactly did you do to attempt to share your internet connection? Is there a router....etc
Then I will be able to help you out better.

Cheers!