The subject of revision is the Authenticator PACP state machine, shown at Figure 8-7. If authenticator state machine is currently in AUTHENTICATING state. Authenticator is sending EAPoL message to Supplicant, but Supplicant doesn't respond. In this case after eapTimeout the state machine will increment auth.retryCount and will return again to AUTHENTICATING. When retryMax will be reached - the state machine will go to UNAUTHENTICATED state, will clear auth.retryCount and will forever circulate like this as long as Supplicant doesn't respond.