I have an iphone 4 that I've had since the day it came out. I got an ipad 2; 2 weeks ago. I have not had any problems with wifi until last night. All of a sudden neither device will connect. (it always used to automatically) Wifi is on and when I go to setting where it says wifi it has the network name but when I click on it I never get the blue check mark like I used to. It just keeps searching. My husband has the iphone 4s and an ipad 2 and he was connecting to wifi fine. Last night I shut both my devices off and put them back on in the morning but it didn't fix the problem. I went to my parents house and my wifi works just fine there so the problem is only at home with my 2 devices. If someone can please help me on how to fix this problem. I have read some stuff on line but it's all very confusing to me. Otherwise I guess I will try to call AT&T when I get home. Thank you very mcuh for any help you have to offer!