Laptop computer (wireless) will not

Well as i understand.
You need to do a hard reset of your router and reconfigure your router.Then try to access your internet in case it work's good in case it not.
Then,
get in to a command propmt (run>cmd).type ipconfig
check the ip address.whether you getting a default ip address or not.if yes then, type ping any website name press enter.It will give you a turn around time that means your compuetr is communicating with your router. then try to open a website on internet Explorer. In case it not work run a small winsock.
in cmd window.

Hope this will resolve your issue.