Documentation forServer & Application Monitor
Monitoring your applications and environment is a key capability of SolarWinds Observability Self-Hosted (formerly Hybrid Cloud Observability) and is available in the Essentials edition. Server & Application Monitor (SAM) is also available in a standalone module.

Node Unreachable message when configuring AppInsight for IIS in SAM

Error: Credentials test failed. Node is unreachable.

Resolution: Ensure the node is currently being managed. For more information, see Schedule tasks to stop with the Unmanage Scheduling Utility. When finished, rerun the steps in Assign AppInsight for IIS to nodes in SAM.