Nano not outputting DMX

I have a NANO and am running the current software, I was running an older version with the same problem. this has happened two show's in a row (very costly). After I programmed a show I shut down the laptop to move it and when i turned everything back on I had no control. I can see the Nano on the laptop in the devices screen and it shows connected in the wins screen. When I move the fader's on the console they move on the laptop but there seems to be no DMX output. I have deleted and reloaded software. Forced the Driver and firmware updates still nothing. I even opened up the console to verify all connections. If someone could call me that would be great 702 596-3533.