Specify the number of times the Switch tries to authenticate client(s) before sending unresponsive
ports to the Guest VLAN. This is set to 2 by default. That is, the Switch attempts to authenticate a
client twice. If the client does not respond to the first authentication request, the Switch tries again. If the client still does not respond to the second request, the Switch sends the client to the Guest VLAN. The client needs to send a new request to be authenticated by the Switch again.