Laptop connects to wifi, but no internet

Well since yesterday my laptop can't really go online anymore, I haven't really done any changes to the router at all, but the laptop kinda just stopped. There's no spyware, viruses or anything. It connects perfectly fine to my wifi, but can't get any website. I've tried disabling WPA, and Mac Filters, and got nothing still getting the Firefox and IE message, Unable to connect.

OP Here, turned out to be Zone Alarm that somehow fucked it up. Uninstalled it and everything works fine, tried posting back then but kept getting a posting error(thatfuckingface.jpg) Forgot that I had zone alarm, so took it out since my router has firewall and whatnots.