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kdave
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‎09-12-2025
Last activity: Sep 12, 2025 4:31:27 PM
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Troubleshooting Tip: How to troubleshoot Collector registration fails with 401 authentication error due to trusted hosts configuration

09-08-2025
Description This article describes how to troubleshoot Collector registration failures with a 401 authentication error due to the trusted hosts configuration. Scope FortiSIEM. Solution While trying to register the collector with the correct credentia...

Troubleshooting Tip: How to resolve Clickhouse tables in read-only mode due to Part xxxx intersects previous part yyyy in FortiSIEM

08-22-2025
Description This article describes how to resolve Clickhouse tables in read-only mode due to Part xxxx intersects Part yyyy in FortiSIEM. Scope FortiSIEM. Solution The following errors are observed in /opt/clickhouse/log/clickhouse-server.log: tail -...

Troubleshooting Tip: How to troubleshoot 'phIpIdentityWorker unable to keep up with incoming event rate' errors shown on the Supervisor GUI

08-19-2025
Description This article describes how to troubleshoot 'phIpIdentityWorker unable to keep up with incoming event rate' errors shown on the Supervisor GUI. Scope FortiSIEM. Solution While checking on Supervisor Jobs/Errors or health page, the followin...

Troubleshooting Tip: How to troubleshoot collector stops sending events randomly

07-29-2025
Description This article describes how to troubleshoot a collector that stops sending events randomly. Scope FortiSIEM Collector. Solution It has often been observed that the collector stops sending events to the event worker with all the proper conf...

Troubleshooting Tip: How to troubleshoot 'PH_DATAMANAGER_EVTIDX_WRITE_POST_ERROR' errors for specific worker

07-29-2025
Description This article describes how to troubleshoot 'PH_DATAMANAGER_EVTIDX_WRITE_POST_ERROR' errors for a specific worker. Scope FortiSIEM Worker. Solution This issue is mainly reported for a single worker among other workers and the Supervisor, i...
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