1. A method for correcting a communication unit's access to a wireless communication system, the method comprises the steps of; a) after expiration of a predetermined time period, transmitting, by the communication unit, a message that includes a unit configuration identifier; b) upon receiving the message, comparing, by a monitoring computer, the unit configuration identifier and stored unit identifier information; and c) when the comparison of step (b) is unfavorable, reprogramming, by the monitoring computer, at least a portion of system access information of the communication unit.