Technical Tip: 'Invalid secrets for the server' shows up on GUI -> RADIUS Server -> Connection status

[tonylin1]

Description	This article describes the situation of 'Invalid secret for the server' showing up after Blast RADIUS mitigation of FortiGate v7.2.10, v7.4.5.
Scope	FortiGate.
Solution	Scenario: After upgrading FortiGate to v7.2.10, v7.4.5 and following the KB article: Technical Tip: Workaround for Blast RADIUS mitigation behavior in v7.2.11, v7.4.6 and v7.6.1, the backend of RADIUS authentication is working fine but GUI shows error as below. Solution: It is a known GUI issue with no backend impact and fixed on firmware v7.2.11, v7.4,.8 and v7.6.1. The user can confirm the connection to the RADIUS server via the CLI command: diagnose test authserver radius <server> <method> <user> <password> Related documents: Troubleshooting Tip: RADIUS connection issue with Microsoft NPAS after FortiGate upgraded to v7.2.10... Troubleshooting Tip: RADIUS authentication failure after the firmware upgrade to v7.2.10/v7.4.5/v7....