Wi-Fi on my iPhone hasn't been working?

I have the iPhone 4S and my Wi-Fi hasn't been working since last night. My phone says it connects to the Wi-Fi and as two or three bars. However, nothing will load. Safari, Pandora, Facebook, Instagram, etc. I don't think the problem has to do with the router since my laptop connects perfectly.

Does anyone have a solution to help fix this?

Try turning your phone off then turning it on again? I kind of had the same problem, what I did was, I used 3G for a bit then went back to Wi-Fi. You could try that, but I have an iPhone 3G so I'm not sure if it would work for you.

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