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Just recently my iPhone stopped connecting to my home router.

It works elsewhere but is not connecting at home. My laptop connects, but not my iPhone any longer. When it asks me to choose a network - I select my home network and enter the password, and it then says:

Unable to join the network “alexander” (Which is the name of my home network.)

When I tap the blue circle, there is no IP address or anything else entered on that page. But I don’t know if there was ever anything there when it was working as I had no reason to look there when it was working.

I know what the password is, as I have it written down, but I have also tried two other passwords and it never says that it is an incorrect password, it just says:

Unable to join the network.

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I realize this is a 5+ year old question, but I am going to vote to close this question as “too broad.” Part of the core issue anyone will have attempting to answer this question is the lack of specifics. What is the make and model of the router you are having issues with? What model of iPhone are you using and what version of iOS is on it? – JakeGould Sep 19 '15 at 0:39

Try telling it to forget that network, and then try joining it again. Maybe the iPhone is holding onto a stale setting somewhere.

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Go to: “Settings -> General -> Reset -> Reset network settings.”

That should fix it. It’s the best and only answer I got that was any use.

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