The UNKNOWN service status is displayed in grey throughout the Uptime Infrastructure Monitor user interface. A service will enter an UNKNOWN state under any of the following conditions:

  • The host that the service resides on has gone offline.
  • The host on which the service resides has entered a scheduled maintenance or downtime period.
  • The service monitor could not be executed by the monitoring station.

Any time the status of the monitor can not be directly verified, the monitor will enter the UNKNOWN state.

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