Did you try to set it up manually or automatically? (To try and help you I'm going to assume you're doing it automatically) Head to the Wi-Fi settings using any game, and delete the info off whatever slot you were using before. Tap said emptied slot, and hit "Search for a Wireless Access Point". When your access point pops up, enter your password (if you've got security settings, that is). Run a connection test. Does it work? If not, check your IP. If it's 0.0.0.0 still, then set an IP address manually.
Pro tip: I usually just add 1 to the IP of another device I have, so, in this case, type in 192.168.1.4 Run a connection test again. Did it work?
Also another tip I'd suggest if the above didn't work is to set it up entirely manually, from scratch.
What's troubling me is the fact that I can't think of a reason as to why you'd get 0.0.0.0 as an IP. Are you sure you typed your password in correctly? (if you have one)
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