Grafana Cloud
Last reviewed: October 22, 2026

Troubleshoot private probes

If a Synthetic Monitoring private probe isn’t connecting or working as expected, use the following checks to review the agent’s configuration, logs, and metrics. For failures reported by a check, refer to Troubleshoot a failing check.

  1. Check the probe version using the -version flag and make sure you are running a supported version.
  2. Make sure the probe has a valid probe access token.
  3. Make sure the probe can connect to the Synthetic Monitoring API server.
  4. Run the Synthetic Monitoring Agent in debug mode with the -debug and -verbose flags and check for errors in the logs.
  5. Check the Synthetic Monitoring Agent metrics. The default address for Synthetic Monitoring Agent Prometheus metrics is localhost:4050/metrics.

If you are still facing issues with Private Probes, ask for help in the community forum. Refer to Account types and support available for Grafana Cloud users for more information.