I am 18 months into a new QU-32, AR2412, ME-U and 6 ME-1 system. Everything has worked fine. Out of the blue, two of the ME-1 units will not display channel names. They display the channel number for mono channels and KEY UNASSIGNED for stereo. No audio is received. I tried rebooting ME-1. Factory Reset. And Force Channel List Update. Moving the bad units to the ME-U port of one that works does not resolve. Rebooting the ME-U does not resolve.
Ideas?