Recently, my iPhone 4 has not been cooperating with my network connection. It has worked perfectly fine in the past, only until last night. All of my other devices connect fine: At least 5 other iOS devices, 4 laptops, and 3 DIRECTV receivers. I have tried resetting network settings, forgetting the network, and resetting the iPhone. It accepts the password, but immediately reverts the the 3G connection. I have tried turning off 3G, but then it just uses EDGE. It is becoming very frustrating. I don't think going to Apple will help as I can't excatly show them if I'm not at home. Has anyone experienced similar problems? If so, what have I missed? I am hoping to have this resolved as soon as possible.
Thanks in advance!
ADDED: No, I don't believe I have any MAC Address filtering.
Answer by kevin · Jul 04, 2011 at 01:54 PM
Do you have some sort of MAC address filtering. Although you may be connected to the router, the router does not allow that device's mac address to join and kicks it out.
Also, try another wifi network and see if it is your device specifically or the router fault. If you can connect to another network, then it is the router.
Answer by TheTechDude · Jul 04, 2011 at 03:39 PM
Try unplugging then re-plugging in the router. I have the same problem sometimes with my iPod Touch 4th Gen where it will connect for a second and then disconnect, while everything else in my house continues to use the wireless without a problem. (This happens about every week or so for me)