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I cannot get my iPhone 4s to connect to wifi in my home since the last two updates. It sees my network but says unable to connect. This not only happens to my iPhone 4s but to my iPad 2 and my iPod touch. Idk what else to do to get it to connect. My other non apple products work just fine on my wifi but my apple products wont. Please help me I am about to go crazy.
Settings > General > Reset > Reset Network Settings.
Do they connect to any Wi-Fi network?
If they connect to others, it's an issue with your router most likely. Start by power cycling the router.
If they do not connect to any Wi-Fi network, then it's likely a hardware issue. Although it is highly unlikely that 3 devices would have the same hardware failure.

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