Why my iPhone 5 falled to connect my home Wi-Fi?

Yesterday I connect it to my friend's wireless network, then I found that I would never connect to mine. The password is right and my laptop can connect to Wi-Fi well. Does anybody know why?

Try restarting your phone or the router. If it still doesn't connect they may be incompatible. You can also try resetting your router and your phone, but its not recommended!

Had you changed any setting? If so, you can try to reset network settings If you're suddenly having difficulty connecting to a network from an iPhone, the administrator may have recently changed the network's configuration settings. Or update iOS to improve Wi-Fi connectivity, you can check the exact steps here, http://www.mywifirouter.me/blog/5-solutions-for-wireless-network-on-apple-ios-devices/

Try forgetting the network name on your iphone. Perhaps your friend's access point had the same name as yours at home, and your phone is still trying to use the password for your friend's network.

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