My iPhone Wi-Fi isn't working, how do I fix it?

The Wi-Fi at my house works on my computer and everything else. On my iPhone 4s it says I have full Wi-Fi, but when I try to load a YouTube video or refresh my Instagram feed, it won't load. At all. I've restarted my Wi-Fi many times and it still won't work. How do I fix this?

It could be 2 things.

one, you may need to restore or update your phone software to the latest version 5.1.1

two you may need to login to your router and change one of the channels that your computer and phone connect to.

hope this helped

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