Are you having problems connecting to your WiFi connection. Does your PC tell you WiFi is Off.
Try a couple of things:
1) Perhaps the switch on the front of your laptop is switched off. Turn it on.
2) Go to the Charms bar (place cursor in lower or upper right hand corner. On charms bar select Settings, then Change PC Settings. On the Wireless tab ensure Airplane mode is set to Off and WiFi is set to On.
These 2 simple things may be all it takes to connect to your WiFi.