Technical Tip: FortiGate Role Alignment and Capaci...

wcruvinel · 08-31-2025

Description This article describes high CPU usage in the 'user' space every two hours, causing outages. The issue is triggered after upgrading to v7.6.2 and v7.6.3 and is caused by a software issue. Scope FortiGate v7.6.2, and v7.6.3. Solution Sympto...

wcruvinel · 08-29-2025

Description This article describes an issue where the WAD process may crash with a segmentation fault (signal 11) related to the function 'wad_find_fwdsvr_by_key' after upgrading to FortiOS 7.4.8. Scope FortiGate, FortiOS 7.4.8. Solution Symptoms: Af...

wcruvinel · 08-17-2025

Description This article discusses an issue where IPsec over TCP does not work properly when FortiGate is configured with more than one WAN interface. The problem occurs because returning IKE traffic is taking a different path instead of the source p...

wcruvinel · 08-11-2025

Description This article describes a software issue that causes packet loss, authentication failures, and session drops when using interfaces of type 'redundant' on specific FortiGate models and FortiOS versions. Scope FortiGate-70/71G, 90/91G v7.4.7...

wcruvinel · 07-09-2025

Description This article describes how to correctly deploy FortiGates by assigning them to their appropriate roles, ensuring sizing accuracy, and avoiding performance issues caused by misplacement or misuse. Incorrect role assignment or improper sizi...

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Troubleshooting Tip: High CPU usage in the 'user' space every two hours

Technical Tip: High CPU usage and wad crash (signal 11) after upgrade to FortiOS 7.4.8

Troubleshooting Tip: IKE over TCP sessions fail due to asymmetric return traffic in dual WAN environments

Technical Tip: Packet loss passing through interfaces of type 'Redundant'