Originally Posted by dagger
Can you connect to any other wifi network?
If yes, then there is a problem with your home wifi router.
If no, then there is a problem with your phone.
EDIT: After a bit of searching, i came up with this,
Your wireless network may need to have your devices mac address before it can recognize and grant wifi access to that device.It turns out you need to add the mac address to your router so that it can let the device associated with the mac address connect to the network. If you don't know how to do this, or can't find another solution, call your network provider for assistance. They should be able to help you out. I cannot tell you how to fix your problem because I don't know (and don't want to know lol) your router address / IP address and password.
Yeah, i added my phones MAC address to the router already. Havent tried other wifi network since i've been home since this happened.. i hope its not my phone