Why can't my iPhone 5 locate my home Wi-Fi network?

My iPhone has been automatically connecting to my home Wi-Fi network for months, but a couple days ago it stopped and my home Wi-Fi network does not even appear in available networks any longer. Four networks appear and they are all nearby neighbors. Yes, my home Wi-Fi is up and working fine and I'm sitting right next to it. Any ideas? I have already tried turning off and back on again.

You should reset all settings of your iPhone. If it does not help that carry telephone to the service center. Maybe you have a serious breakdown and reset can't help.

Have you tried explicitly typing the name of your home network? If it's hidden, it won't show on the list, although I'm not sure why it would suddenly be hidden unless you changed a wi-fi parameter on your network.

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