Laptop won't connect to Internet ?

I have a wireless Internet connection but my laptop won't connect it used to be thou I was playing minecraft online and my game froze so I disconnected and tried to reconnect but it wouldn't work so I restarted my laptop then it said it couldn't connect to windows service and then couldn't find my wifi but my iPod and xbox was still connected. My laptop is really new not even a year old and it doesn't have a LAN switch/wifi switch. I also tried restarting my router it just can't find my wifi but every thing else I have does how do I fix this?