ESP8266 on Resmedianet

I've been playing with an ESP8266 on campus wifi networks. The ESP8266 works on resmedianet, but it will silently fail if you have not yet netreg'd the MAC address for the device.

This often exhibits as the device simply failing to secure an IP address. The solution to this is to lookup the MAC address with `WiFi.macAddress()` and then netreg it.