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In the iphone settings I have wifi turned on. It even detects the wifi, I have entered the password.

When I open any app, I get a "not connected to internet"

Its kind of funny, I know its got to be easy to figure, but I am trying to connect my iphone to wifi unsuccessfully for the past 15 min.

What setting changes should I do, to have it connect automatically (I have done that in the settings)

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Is it jailbroken? – Kells Aug 19 '09 at 14:41
up vote 3 down vote accepted

Try to delete your saved info about your router.

Go to Settings->Wi-Fi-> select the right arrow next to the name of your router-> Select "Forget this Network".

Now try to connect to the router again.

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Does the trick! Thank YOu! – Lakshman Prasad Aug 19 '09 at 14:55

What kind of network are you trying to connect to? There could be security measures in place that prevent connection like hotspots with auto-redirected login pages and such. Does the Wifi icon show active signal strength? Is their mac address authentication security policies in place?

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Its my own home wifi. I have entered the password too. – Lakshman Prasad Aug 19 '09 at 14:41
    
What kind of security (WEP, WPA, WPA2) do you have set on the router? – Troggy Aug 19 '09 at 14:48

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