Um... well, you might want to flash the firmware as a first step. Go to
S4 Firmware to get it from Bitmain.
Also, make sure you don't have that miner exposed to the outside world (i.e. you don't have port forwarding to it). Change the password for sure.
I've already flashed the latest firmware image, reset many times, and reset the password. However, I have not done all of those things at one time so to start how can I close off port forwarding?