CEM+ processor

Hello,

we have 3 dimmer Rack with 2x CEM+ processor on each rack 1 main and one back up in our studio, i noticed sometimes one of our rack is not working but there is power it not receiving any data from our console so what we are usually doing is making a hard reset to our dimmer rack switching OFF then turning ON which solve the problem, yesterday we encounter again the same problem i check the processor of one dimmer rack which is not working then i noticed that the 2 CEM+ processor of the not working dimmer rack has both (*) in the display which mean both of them are selected a main processor, unlike to our other CEM+ processors in rack only one of them have an (*) in the display (1 working as a main processor showing (*) in the display and the other is none which means its working as a backup processor)... 

What could be the problem and any other solution that you can recommend other than making an hard reset on the power.

Thanks...

Related