The present disclosure relates to setup of multiple IoT network devices. Specifically, various techniques and systems are provided for setup of multiple similar IoT devices at substantially the same time using joint authentication. More specifically, embodiments of the present invention are directed to methods and systems including, for example, receiving, at an existing network device on a network, one or more communications, wherein the one or more communications include an indication that multiple new network devices are associated with the network; receiving an indication that the multiple new network devices have each generated a setup access point; establishing a connection with the setup access point of each of the multiple new network devices; receiving identification information, wherein the identification information includes information identifying each of the multiple new network devices; and transmitting the identification information identifying each of the multiple new network devices, wherein when the identification information is received, the identification information facilitates generating one or more authentication queries to authenticate one or more of the multiple new network devices.