Hi All, I am having this strange issue with my Airport Extreme where no mobile phones are able to connect to it. The phones are broad selection, including an iPhone 4S, a windows phone and an android. However I am having no issues connecting with my iPad 3rd Gen or my Macbook. The airport extreme is a 5th gen device, so has dual band connectivity and is running the latest firmware - 7.6.3. The even stranger thing is that it was working fine with all devices in a different apartment. Any idea as to why this is? So far I have restored both the iphone and the airport extreme to factory settings without success. Anything else I can try?