K40 not initializing through k40 wisperer

good day
i have just purchased a k40,it has been working ok for a week.
i use inkscape for the designing and k40 whisperer for the engraving and cutting, last night i went to use the laser but the laser wont initalize, i havent done anything different, i have reinstalled software, drivers, cables even bought a new laptop, the laser still test fires and sets to home, could the board have failed it came with the m3 nano, if so could i swap it out for a m2 nano