libfreeradius-client2 needs a specific parameter in radiusclient.conf: # The length of time in seconds that we skip a nonresponsive RADIUS # server for transaction requests. Server(s) being in the "dead" state # are tried only after all other non-dead servers have been tried and # failed or timeouted. The deadtime interval starts when the server # does not respond to an authentication/accounting request transmissions. # When the interval expires, the "dead" server would be re-tried again, # and if it's still down then it will be considered "dead" for another # such interval and so on. This option is no-op if there is only one # server in the list. Set to 0 in order to disable the feature. radius_deadtime 0
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