Fortinet Cilent

[Giovanni Jones]

I am currently in the process of configuring a TACACS+ server to integrate with our Active Directory via LDAP. The goal is to allow Fortinet devices to authenticate users against the LDAP backend.

While the TACACS+ server is running and all connections appear to be established correctly, I am encountering an issue: the Fortinet device is not authenticating any users, including both AD users and local TACACS+ users.

I have verified connectivity between the Fortinet and the TACACS+ server, as well as between TACACS+ and the LDAP/AD server, but authentication attempts continue to fail. I would greatly appreciate your guidance or recommendations on troubleshooting this issue.

Thank you for your time and support. I look forward to your advice.