Troubleshooting Tip: WAD CPU spikes due to configu...

Ehanssen · 10-15-2025

Description This article describes High softirq CPU usage on VMware. Scope FortiGate. Solution The first step to troubleshoot CPU issues is always to determine the CPU module of usage. This issue is regarding the softirq module. FGT-01 # get sys perf...

Ehanssen · 09-09-2025

Description This article describes how to handle high cache and shared memory due to large amounts of open flowAV files. Scope FortiGate. Solution This article is concerned about high cache and shared memory usage due to high flow antivirus utilizati...

Ehanssen · 08-27-2025

Description This article describes how to identify which exact WAD process is consuming memory and how to diagnose it further if it is the WAD cert-manager process consuming high memory. Scope FortiGate. Solution The WAD cert-manager process is one o...

Ehanssen · 07-17-2025

Description This article describes how to resolve a scenario with high CPU usage in the system space because of the inet_hash_connect function. Scope FortiGate. Solution When troubleshooting CPU issues, the first step is to determine in which categor...

Ehanssen · 05-07-2025

Description This article describes why provisioning fails with an 'Incomplete: waiting for connection' error. Scope FortiZTP 25.1.a (product page). Solution This article describes provisioning issues via FortiZTP where provisioning fails and the proc...

Ehanssen · 11-27-2024

Highly enjoyable read. Shared it with my colleagues. 

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Troubleshooting Tip: High softirq CPU due to inoptimal drivers on VMWare

Troubleshooting Tip: High cache and shared memory due to flow mode Antivirus

Technical Tip: High memory due to the WAD cert-manager process

Troubleshooting Tip: High CPU usage in system space due to source port exhaustion in explicit proxy setup

Troubleshooting Tip: FortiZTP provisioning errors due to wrong region - 'Incomplete - Waiting for connection'

Re: Technical Tip: How to get only the serial number via CLI

Troubleshooting Tip: WAD CPU spikes due to configu...

Technical Tip: High cached memory due to increasin...

Technical Tip: L2 Loops and high softirq on FortiG...

Troubleshooting Tip: High cache and shared memory ...

Technical Tip: Tracking WAD throughput in the CLI

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