Troubleshooting Tip: HA out of sync due to IPS sen...

jo_rang · 09-09-2025

Description This article describes a solution to the issue of IS-IS neighbors being stuck in the INIT status on FortiGate devices when there are more than 42 neighbors configured. Scope FortiOS v7.0, v7.2. Solution In a network environment where ther...

jo_rang · 06-24-2025

Description This article provides guidance on troubleshooting Site-to-Site VPN connectivity issues when Phase1 is down and the message 'error 22:Invalid argument' is seen in the IKE debugs. Scope FortiGate. Solution In this scenario, a Site-to-Site V...

jo_rang · 05-22-2025

Description This article explains why DNS resolution might fail when the FortiGate is configured to use OpenDNS servers 208.67.222.222 or 208.67.220.220. Scope FortiGate. Solution FortiGates deployed in the Country of Belgium might face DNS resolutio...

jo_rang · 04-08-2025

Description This article describes the procedure to enable the XAUTH column in the IPsec monitor Widget to easily see the user ID associated with the dial-up IPsec connection. Scope FortiGate versions 7.0.x, 7.2.x, and 7.6.x. Solution The default vie...

jo_rang · 10-28-2024

Description This article includes a troubleshooting tip to fix issues when HA is out of sync due to ips.sensor checksums mismatch Scope FortiGate. Solution From System -> HA, hover the mouse over the Secondary Firewall that is displaying the 'Not Syn...

jo_rang · 11-26-2024

Hi, Try to create the VPN via CLI: Phase 1: config vpn ipsec phase1-interface edit "IPSEC"set interface "wan1"set peertype anyset net-device disableset proposal aes128-sha256 aes256-sha256 aes128-sha1 aes256-sha1set remote-gw 10.9.10.27set psksecret ...

jo_rang · 11-19-2024

Hello @aj-fernandez,Pay special attention to the special notes in the release notes:Special notices | FortiGate / FortiOS 7.2.10 | Fortinet Document LibraryThere is a change in Radius that can cause some headaches. See the following link for more inf...

jo_rang · 10-29-2024

Es importante primero saber por qué el Fortigate está bloqueando el tráfico. Es posible que el WebFilter o el Application Control estén bloqueando el acceso a drive.google.com. Puede intentar revisar los eventos de seguridad o los registros de reenví...

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Technical Tip: IS-IS neighbors stuck in INIT state when there are more than 42 neighbors

Troubleshooting Tip: IPsec VPN 'error 22:Invalid argument' message

Technical Tip: FortiGates in Belgium unable to resolve hostnames when using OpenDNS as DNS servers

Technical Tip: How to enable the XAuth Column in IPsec Monitor widget to identify users connected to remote access VPN