This disclosure describes techniques for identifying and reconnecting systems, including financial service systems, to a network during or after an outage in which systems have been disconnected from one or more networks. In one example, this disclosure describes a method that includes navigating a vehicle, by a computing system of the vehicle, to a location near an area in which one or more financial service systems have been disconnected from a network; identifying, by the computing system of the vehicle and based on a wireless signal detected by the vehicle, a financial service system that is within the area and that has been disconnected from the network, wherein the financial service system is one of the one or more financial service systems; and transferring, by the computing system of the vehicle, information between the financial service system and a banking computing system to thereby enable performance of a financial transaction.