I am currently typing this on my PC with perfectly fine WiFi and it has been working all day. I tried to connect my iPhone 5s to the same exact WiFi, but I get a message next to the network name saying "No Internet Connection." There is also an exclamation mark over the WiFi symbol. This is my home network and it was working yesterday. I noticed this and tried to connect to my WiFi and even my friends WiFi and there was the same problem. Could this be a damage to a part in my phone? Thanks!