Hey everyone,
So we managed to fix this problem, but I want to push out the symptoms and solution so it would be part of the knowledge base. We have 4 Sensor+ 72 racks run from an Emphasis server on ETC2net. For the last week or so, the system had been functioning normally, but right before focus tonight, suddenly half of our dimmers wouldn't come up, and there was one or two that wouldn't dim. We spent a good hour tearing through the patch, rebooting the server, trying to see if ETC2net had quit on us, and nothing could resolve the problem. The "Bad" modules weren't responding to the rack at all. We thought we'd lost a phase, but the outages were scattered all over the racks, and the CEMs weren't reporting power loss.
At long last, we shut down all four racks as well as the main node and Unison module for about five minutes. When the system fired back up, everything functioned as normal again. We've got no idea what caused the system to mutiny on us, but cutting the power seemed to fix it.
I wonder, has anyone else had similar problems?
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Jeff Maynard
UMass Amherst- Undergrad Electrician
