On the User & Authentication > RADIUS Servers page, the Test Connectivity and Test User Credentials buttons may incorrectly return a Can't contact RADIUS server error message when testing against a RADIUS server that requires the message-authentication attribute in the access request from the FortiGate.This is a GUI display issue as the actual RADIUS connection does send the message-authentication attribute.Workaround: confirm if the connection to RADIUS server using the CLI:diagnose test authserver radius