For the last two days I have been having problems with my v1. iphone connecting to wifi. At home I would always have full signal for wifi. Now it will show up every now and then but as soon as I try to use safari or something that uses data it switches back to edge. Tried doing a restore last night but it still doesn't work. Also doesn't work while I am at work and it did before so I know its not my router. Any suggestions?? I am about two weeks outside of my 1 year warranty.