This is maddening! I'm still having issues. Wifi just completely stops working, and I have to reboot my phone to get it back. It ONLY happens at home, with my 2011 Time capsule. Other devices work with the Time Capsule just fine, and my phone doesn't have issues on any other Wifi network. It most often happens when I arrive home from being out and about. When I reboot the phone, Wifi works great until I leave and come back hours later, upon which it's broken again. Starting to wonder if I have defective hardware here.