Gmax Board restarts or reboots when connecting..

I’ve been noticing that my gMax restarts or reboots when Simplify 3D tries to connect to it at start up. Basically when I launch Simplify3D while my printer is on I can see the LED screen restart as S3D tries to initiate a connection. This keeps happening and never connects till at some point it randomly does connect.

Same thing happens when I use AstroPrint box. When I initiate “Connect to Printer” , the gMax does the same thing....

This actually has been harping as far as I can remember which is why I started using SD card primarily..

Any one else has this issue?