IPhone not connecting to new Wi-Fi?

Okay so I got an iPhone and when I got home it instantly connected to my router no problem. I was able to go on safari, check my mail, twitter, facebook, everything. Then, for a separate issue we got a new router and now my iphone detects it, and I'm able to connect to it and it says i'm connected in the upper tab bar but will not load safari, my mail, twitter, facebook. Its either a blank pageor in facebooks case, says it can't load. I've tried researching solutions on the internet (Also, everyone elses devices and laptops are able to connect fine to the router/ Wi-Fi) but none are relevant to my situation. Also, when I'm at a friends house, it says it was unable to connect to Wi-Fi after i've typed in the correct password!

Please please please help!

Sometimes "stuff happens" and the best course of action is to reinstall the software. Backup your iphone with iTunes and then restore it with the option under the 'summary' tab. Afterwards, restore your backup and see if all is well again.

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