My iphone connects to my work WiFi network and uses it just fine. My brother's phone connects just fine, then reverts to Edge when he accesses anything like Safari or Youtube. We thought he had a defective phone, so he got it exchanged at the Apple Store and the brand new phone has the same problem. We put in the WEP password just like I did on my phone and it connects. We can see the airport icon at the top. Then, he goes to Safari and the airport icon changes to Edge. When I look at his network settings, I can see that his phone has no ip address. We've tried "forgetting" the network and rejoining and the same thing happens. Any ideas on what the problem might be? I have our cable modem going into a Microsoft MN700 wireless in access point mode, then out to a router that connects to our corporate network. Laptops and such have no problems using wireless here. Could it be some problem like only ONE iPhone can use the wireless for some reason?