This paper analyzes the modeling and the validation of multiuser remote microcontroller laboratory-MicroLab. The MicroLab allows geographically dispersed students to conduct individual laboratory experiments remotely and simultaneously from anywhere. The distributed architecture of the laboratory behind the host computer is created by MicroNet, which is a designed higher layer controller-area-network protocol between laboratory experiments and the host computer. This paper particularly focuses on the question of whether the MicroNet meets the requirements of controlling and monitoring of laboratory experiments for multiple clients. In order to determine the validation of the MicroNet protocol, remote laboratory is modeled and simulated under various message traffics. In addition, the achievable highest amounts of laboratory experiments are investigated. Overall, the results showed that the microcontroller experiments can be remotely programmed and conducted. Furthermore, the results also demonstrate that, if needed, more laboratory experiments can be added to remote laboratories.