Here are some more details:
-This happened spontaneously (I did not drop my phone).
-I cannot connect to my home wifi or any other wifi network that I've previously been able to connect to.
-I cannot turn wifi off and just use my data plan to access a server.
-I've tried all the resets (turning phone on and off, reseting the network, reseting the phone to its original factory settings).
-I've been in Korea for months now and this is the first time this has happened to my phone.