Worked on enhancing the robustness of the Child ID Request state machine in the zephyrproject-rtos/openthread repository, focusing on improving device onboarding reliability. Addressed a bug by implementing a timeout mechanism for the kStateChildIdRequest state, ensuring that child entries do not persist indefinitely. Cleared previous parent information when devices transition to router mode, which prevents unnecessary notifications and messaging. Ensured that state transitions only occur after successfully queuing the Child ID Response, directly reducing attachment issues. The work was carried out using C++ and embedded systems expertise, with a strong emphasis on networking protocols and state management within constrained environments.