It did the same thing. I just noticed it says no connection on height control, I opened up the box and theres a red light on the red THC module, there are two yellow lights flashing on the motion control board (D1 and D2/TX RX). The z-axis has been running fine I didnt notice the THC isnt connected in firecontrol til now. I cannot seem to get it to connect
SOLVED: I had to manually install the thc download and it fired right up!! Thanks for everything!