Technical Tip: Unable to log in to FortiGate GUI a...

lkumar · 01-06-2026

Description This article describes the steps to resolve a 403 Forbidden error encountered during SAML authentication configuration on FortiAuthenticator, even when the SAML IDP service is enabled in the interface. The issue occurs when the browser is...

lkumar · 11-13-2025

Description This article describes the issue of getting a permission denied or 403 Forbidden page when trying to integrate an external captive portal with the Aruba Guest SSID in FortiAuthenticator. Scope FortiAuthenticator, Aruba AP. Solution Below ...

lkumar · 11-13-2025

Description This article describes the issue of being unable to add service groups to the captive portal exempt list after upgrading the FortiGate to version 7.4.9. It provides a step-by-step solution to resolve the problem. Scope FortiGate v7.4.9 So...

lkumar · 09-24-2025

Description This article describes an issue where an administrator fails to log in to the GUI using either local or remote user accounts after upgrading to firmware version 7.6.4, when the post-login banner is enabled. Scope FortiGate v7.6.4. Solutio...

lkumar · 06-06-2025

Description This article describes how to resolve an issue where SAML IDP authentication fails with a '403 Forbidden' error and FortiAuthenticator is configured as an IDP. Scope FortiAuthenticator v6.6.1. Solution When a user enters the credentials a...

lkumar · 10-30-2024

Hi KASUKABE,Please follow the below-attached article to configure email-based MFA :https://community.fortinet.com/t5/FortiGate/Technical-Tip-Email-Two-Factor-Authentication-on-FortiGate/ta-p/194890

lkumar · 10-15-2024

Hi Hieu,You can block the file upload for the applications using the application control profile in the firewall policies.Below is an article to block Upload on Google drive by using Application Profile> https://community.fortinet.com/t5/FortiGate/Te...

lkumar · 09-12-2024

Hello Ramadan,Please follow the below-attached articles where you can configure the threat feeds and use it in the firewall policy> https://docs.fortinet.com/document/fortigate/6.2.0/new-features/625349/external-block-list-threat-feed-policy> https:/...

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Troubleshooting Tip: SAML IDP page shows 403 forbidden error after upgrading the FortiAuthenticator to v6.6.5

Troubleshooting Tip: Unable to integrate FortiAuthenticator Captive Portal with Aruba AP(403 Forbidden error)

Troubleshooting Tip: Unable to add Service Groups in captive portal exempt list after upgrading to FortiGate v7.4.9