I have just bought an iPhone 4 and am having trouble connecting to the Home Hub 2 via BT Infinity. I have an iPad, iPhone 3G and Mac Book Pro all connecting without any problem. Sometimes get an IP address and Subnet Mask address but no Router or DNS address. I have tried changing the WiFi channel and turning off security without any luck. The phone has been tested on two other routers while out and about and have had no problem with connecting. Any one help?