The "dumb" switch the portserver hatsv3 is plugged into did not have its network cable to the "smart" switch, at the rear of the Detector Stack, fully seated at the "dumb" switch. We found this after all other avenues had been tried. On the Left Arm the middle rack on the top electronics platform had tripped off. Each rack has a shunt trip breaker as the main breaker in its individual power panel. If there is a fault or the power goes out each trip circuit must be reset before the main breaker can be reset. So, both CAMAC crates and both DAQ NIM bins in the center rack had no power. The third NIM bin had its power cord plugged into the rack to the right and was still getting power.