iPhone Cannot log into WiFi suddenly [closed]

Posted by Stanley on Super User See other posts from Super User or by Stanley
Published on 2011-11-21T16:58:08Z Indexed on 2011/11/21 17:56 UTC
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wireless-networking

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iphone

I suddenly get into this strange problem. My iPhone has been using the WiFi setup at my home for more than a year. Suddenly it cannot connect to the internet despite still having the full WiFi signal icon.

Have an older iPhone 3 GS and it can still browse the net using the same WiFi. So the wireless router should be working.

When I check the non-functioning iPhone, it has the "Router" and the "DNS" entries blank while the functioning iPhone has entries on both of the fields.

Also the subnet Mask are different.

Please help.

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