Description This article describes how to troubleshoot the memory leak issue. Scope FortiGate. Solution When memory usage is very high and increases very fast in a short period, it might be a memory leak issue, and it can be analyzed by the following...

Description This article describes the license validation for FortiGate virtual machine (VM) appliances in air-gap environments. Scope FortiGate VM appliances. Solution FortiGate-VM licenses have a 30-day license timeout period, and if the license ca...

Description This article describes how to troubleshoot when firewall memory is high, however, the session count remains very low. Scope FortiGate devices- mostly 200F series box. Solution If the firewall 'get system performance' output looks similar ...

Description This article describes possible reasons why the IPS definition version shows 0.0000 and explains how to resolve this issue. System -> FortiGuard -> License Information -> IPS Definition. Scope FortiGate & FortiProxy. Solution IPS Definiti...

Description This article explains how to create an alert when a specific CPU core reaches high levels of activity. Scope Any supported version of FortiGate. Solution Below is an example of core CPU usage details that can be observed in a system perfo...