Systems, methods, and apparatus for identifying, invalid nodes within a mesh network are provided. A routing table may he maintained by a utility meter. The routing table may include information associated with one or more devices in communication with the utility meter via a mesh network. A change in the routing table may be identified by the utility meter, and an alert message associated with the identified change may be generated by the utility meter. The generated alert may then be output by the utility meter for communication to a central controller configured to process the alert message to identify an invalid node within the mesh network.