We have used this smartbar for almost 2 years with no problems at our church. One Sunday one light keep going on and off and them off permanently. Bulb was not burned out but replaced with new anyway. Then I notice that it is reading that there are 4 dmx channels instead of 6. Anyone know what happened and how to get the bar back to six channels. All resets did not work. Currently running 6 lights out of 4 channels.