Hi ,
this is FAD.
If there are multiple servers configured, authentication is done per priority.
The one with lowest number will do the authentication.
Accounting, on the other side, should be done on all servers, no matter what priority is configured.
Now, you might ask why we have priority checkbox for Accounting.
The only purpose it serves is when we are in strict mode (for use with Policy Mgr & NAC Mgr).
In strict mode the first 3 RADIUS servers in the accounting priority list will be used for accounting and the rest will be ignored.
In the case of authentication, the first 3 RADIUS servers in the authentication priority list will be used for authentication, 1 at a time, with the priority 1 server being used for authentication exclusively until it fails.
Regards
UMut