Well it's not new but I posted it in the wrong forum. I'm having a problem where I keep getting a communication failure on SBC2 stats. It happens almost once a week where all stats come up with a red flag and show 0.0 degree reading on my front end computer. Have to cycle control power to the controllers to get stats to reset. I was wondering if anyone else had this problem and know's what might be causing it, other than a power failure. VAV controllers are SBC-VAV1, and room sensors are STAT 2, the two button type with no digital display.