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My home wi-fi worked fine on my iphone and still works fine on my ipad. But My iPhone just can't find the router all of a sudden. I've tried everything?
From your post I read, that you iPhone does not connect to the WiFi: Go to Settings/WiFi, if you see the WiFi but are not connected click the WiFi and you will be connected (after putting in the password).
If you do not see the WiFi at all there check if Aiplane Mode is accidentally set.
If that is not the solution: hold HomeButton and SleepwakeButton at the same time, ignore everything on the screen, keep holding until you see the white Apple logo appear then let go both of them. After this restart check the WiFi again.
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