A system and a method using the system for wireless communication using a vehicle telematics unit, including the steps of: prior to a vehicle telematics unit establishing a network connection, assigning a temporary internet protocol (IP) address having a short-term lease duration to a mobile device to permit communication between the telematics unit and the mobile device; and if the network connection is not established prior to the expiration of the short-term lease duration, renewing the temporary IP address, wherein the renewal lease duration is shorter than the earlier lease duration.