huh? you don't need your PS3 to obtain your IP address.. if you're talking about a wireless network, you need your router to ASSIGN an IP to your PS3.Make sure that when you are entering your network details into your PS3 that you include the right SSID, the correct Encryption (wep. etc etc) - and the correct pass code you have set.
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You can find this menu under the Settings heading on the home screen menu. This list displays the IP near the bottom, as well as a bevy of other information about your PS3's network identity. This includes the type of connection being used, the type of security on that connection, the IP address …
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