I'm hoping someone may have come accross this issue before, but my BT Home Hub 3 will not allow any Apple Devices to access the internet. There is something that is blocking them, that means iPhones, iPads and my Macbook. If the Macbook is running Windows via boot camp then it will work fine. In fact all Windows Devices work without problems.
I know devices are definatly being blocked because even when using an Ethernet cable the Macbook is still refused internet access. Oddly this switches off late at night; so after around midnight I can often access the internet with them. At a guess it probably has something to do with the way the hub is assigning IP addresses.