A couple of quick thoughts:
Do things work if you connect the laptop and router via an ethernet cable? If the answer is yes, then your problem is wireless, if no then it's something more basic.
If the problem is wireless: Netgear routers have the ability to block wireless connections, only allowing specified MAC addresses. Have you got this enabled, and, if so, have you entered the correct one for your laptop? (Guess how I know this is a potential problem