We've noticed that our cluster gets disconnected at 6pm. in the logs I see
/21/2016 6:06:57 PM Cluster: Received new device tree (full tree) version=81756489093242 Size=49058432 Reason=crc out of sync 1/21/2016 6:07:01 PM Cluster: Save Device Tree 1/21/2016 6:07:02 PM Trying to restart PRTG Core Server Reason: Cluster: Restarting Core Server 1/21/2016 6:07:03 PM Restart initiated 1/21/2016 6:07:03 PM Cluster: Restarting Core Server 1/21/2016 6:07:08 PM PRTG is shutting down
What does that mean? and why does this happens?