tftp is enabled, I moved the file to root, C in my case and I was operating cmd from C also. from your pic I can tell I was using DOS before you were even born, I know my way around it.
I'm also connected to the correct IP, I even ping it to make sure. Is there any previous firmware that is more stable?
also, like I said, the instructions said to wait for the orange power lite to blink. it NEVER blinks, not a single time during the whole startup/boot process