Technical Tip: Backup Icon is missing in System In...

sseriramalu · 11-17-2025

Description This article describes how to address issues when FortiManager shows the error 'The device’s serial number does not match database' when adding FortiAnalyzer. Scope FortiManager. Solution This issue occurs when FortiAnalyzer is added to F...

sseriramalu · 11-17-2025

Description This article describes how to remove a member of a FortiGate Cluster managed by FortiAnalyzer when the remove button is not available. Scope FortiAnalyzer. Solution After replacing the failed device, it is necessary to delete the broken d...

sseriramalu · 10-13-2025

Description This article describes how to handle scenarios where the backup system configuration Icon is missing in the System Information Widget. Scope FortiAnalyzer. Solution When attempting to perform a system configuration backup before upgradi...

sseriramalu · 09-24-2025

Description This article describes how to troubleshoot when the option to upgrade ADOM in FortiManager is greyed out. Scope FortiManager. Solution This occurs when FortiManager is upgraded without following the recommended upgrade path. In this scena...

sseriramalu · 08-27-2025

Description This article describes how the FortiManager firmware template behaves when FortiGate is offline and comes online after the scheduled firmware upgrade window. Scope FortiManager. Solution FortiGate is in offline state: Proceed to configure...

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Troubleshooting Tip: FortiManager shows error 'The device’s serial number does not match' when adding FortiAnalyzer

Technical Tip: How to remove a member of FortiGate cluster in FortiAnalyzer