Technical Tip: How to disable automatic firmware u...

ManpreetSingh · 11-27-2025

Description This article outlines a step-by-step approach to diagnose and resolve cases where a FortiGate or FortiProxy intermittently blocks user access to websites. It covers common root causes, including policy misconfiguration, LDAP inconsistenci...

ManpreetSingh · 10-29-2025

Description This article provides a consolidated list of useful FortiOS commands for verifying and troubleshooting a VXLAN deployment that uses an EVPN-MP-BGP control plane. These commands allow an administrator to check the BGP neighbor status, veri...

ManpreetSingh · 09-21-2025

Description This article describes the issue of being unable to enable the DHCP server in IPsec phase2 settings on a FortiGate and addresses how to resolve this issue, which involves disabling the mode configuration in phase1 settings. Scope FortiGat...

ManpreetSingh · 08-07-2025

Description This article describes how to block intra-VLAN traffic at the FortiSwitch level and force all traffic between devices in the same VLAN to be routed through the FortiGate. This setup allows security inspection, logging, and policy enforcem...

ManpreetSingh · 07-28-2025

Description This article describes how to configure an IPsec VPN on a FortiGate firewall using an IPv6 address as the gateway, while enabling both IPv4 and IPv6 selectors for phase 2. Scope FortiGate. Solution Configure Interface with IPv6 and IPv4: ...

ManpreetSingh · 08-15-2024

You can refer to this link https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-configure-a-Web-Application-Firewall-WAF-to/ta-p/332909

ManpreetSingh · 07-14-2024

You can refer to if you are also using Fortiauthenticator https://community.fortinet.com/t5/FortiGate/Technical-Tip-Setting-Up-Two-Factor-Authentication-2FA-for/ta-p/325709

ManpreetSingh · 06-12-2024

Hi Obul, 1. Please check if phase 2 networks are configured correctly on both end. 2. Check routes on both end 3. Check if firewall policies are configured from and to between LAN and tunnel. Refer to the document for config steps. Regards Manpreet S...

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Troubleshooting Tip: Proxy Intermittently Blocking Access to Websites

Troubleshooting Tip: Useful commands for Troubleshooting VXLAN EVPN on FortiOS

Troubleshooting Tip: Unable to enable DHCP server in IPsec phase2 settings

Technical Tip: How to block intra-VLAN traffic at the FortiSwitch and route through FortiGate for inspection

Technical Tip: Configuring IPsec VPN over IPv6 and Enabling Dual-Stack (IPv4/IPv6) Phase 2 Selectors on FortiGate

Re: FortiGate Web Application Firewall (WAF) configuration and troubleshooting

Re: Setting Up 2FA for Fortigate Administration Login

Re: Unable to reach Remote Vlan

Technical Tip: How to disable automatic firmware u...

Technical Tip: FortiGate scheduled config back-up ...

Re: Unable to reach Remote Vlan

Troubleshooting Tip: How to check if BGP prefix is...

Technical Tip: How to configure a Web Application ...

Re: Setting Up 2FA for Fortigate Administration Lo...

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