The default supplicant response timeout is 30 seconds, and the range is 1-120 seconds. The number of authentication attempts is not a user-configured parameter.
To modify the supplicant response timer, use the following command and specify the supp-resp-timeout parameter:
configure netlogin dot1x timers [{server-timeout server_timeout} {quiet-period quiet_period} {reauth-period reauth_period {reauth-max max_num_reauths}} {supp-resp-timeout supp_resp_timeout}]