hi there. i own an ethernet variant of the smoothstepper. it works awesome up to the point where it looses connection with the pc. i get the error "the smoothstepper has lost connection for an extended period of time". it usually happens after about 10 or so minutes of running the mill. i have only been using the mill in MDI mode so far. first i was getting the ran out of data error but fixed it by lowering the max step frequency to 64k. then it started losing connection (not sure if it would have always happened if it had not run out of data first). i tried lowering the controller frequency to the lowest setting but it still lost connection after about 10 minutes. i then have to exit mach3 then turn the mill off/on then restart mach3 to get it going again. it generally errors again shortly after doing it once. i dont think it is thermal because its about 35F out in the shop. i checked the smoothstepper and only a green led is lit after error.