Hi, Am I correct in assuming that the "Server restart" refers to the Controller? Or is it the Agent Host? We are getting the following on our servers: 2018-01-22 06:56:18.5601 117288 w3wp 2 28 Warn MetricPoller Coordinator connection problem: System.IndexOutOfRangeException: Index was outside the bounds of the array. Cheers Simon ... View more