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hhasny
Staff
Staff
February 9, 2026

Troubleshooting Tip: FortiAuthenticator Cloud SAML IdP not able to get authentication login page with '403 forbidden' error

  • February 9, 2026
  • 0 replies
  • 113 views
Description This article describes how to resolve an issue where SAML IDP users get a '403 Forbidden' error with FortiAuthenticator Cloud configured as an IDP.
Scope FortiAuthenticator Cloud.
Solution

When a user tries accessing a resource and will be redirected to the authentication login page, but get a '403 Forbidden'.

 

SAML IDP 403.png

 

On the FortiAuthenticator Cloud GUI, go to System -> Administration -> Access Rights. Make sure under Services, the SAML IdP (/saml-idp) is enabled.

 

FACCLD Settings.png

 

Once enabled, the user should get the authentication login page as below.

 

Success.png