iPhone wi-fi unable to join network

Troubleshooting Add comments

Since I upgraded to iPhone 3G I was having a devil-of-a-time connecting to my wireless router. WPA/WPA2 was the encryption scheme and I was struggling trying to pinpoint why the iPhone 3G was unable to join the network while my original iPhone was still connected to my Belkin N1 router. I had plenty of client slots open for DHCP to add me onto and there were 2 other iPhones in the home having no connectivity issues at all. I was getting pretty frustrated until I resorted to going through my router configuation settings link by link to see what I could find. It turns out that MAC address filtering was enabled. MAC stands for Media Access Control and it has nothing to do with Macintosh computers. A MAC address is like a digital fingerprint for wireless devices. The solution: add your iPhone wi-fi address from Settings - General - About to the router’s MAC address filter and that will allow it to join the network.

One Response to “iPhone wi-fi unable to join network”

  1. rilicic Says:

    Itryed also these, I also disabled the MAC adress filter, but nothing happend. At first my iPhone 3G was joing my network at home and the other one in my office, but at once it stopped to join them and starts to display these pop up. then for an instant it joined the network at home and once in my office, but after that it displayed the pop up “unable to join the network “xxxxx”" again…
    Any idea how to fix these issue? I restored my iPhone, but nothing has changed. I also changed a router and installed Time Capsule like a router, but without solving the issue…

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