@ggg welcome to the MySensors community, and congrats on building your first node :-) It looks like the Mega is rebooting all the time. How is it powered? If you haven't already, check out https://forum.mysensors.org/topic/666/debug-faq-and-how-ask-for-help/ for how to fix the most common problems (power problems for example ;-) ). Then report back here and we'll help you take the next step.