I'm not sure how long my 4s hasn't been connected to my WiFi, but when I go to settings and look at WiFi it blinks my network name and "Not Connected"...back and forth, constantly. I've tried restarting my phone, but I'm not able to connect to my WiFi. My iPad works just fine as do the rest of my computers in my house. Airplane mode is turned off and if I go into WiFi settings, a grey swirly circle spins by my network name and then by Choose a network..., constantly back and forth. Any ideas?