Can you connect a monitor or a TV to your Nucleus using HDMI? If so what do you see after the Nucleus has powered on? You might like to take a photo and post it here.
Also, if you look at the list of connected devices in your router’s web admin pages, do you see your Nucleus listed?
Thanks for reaching out. Since there is no HDMI output from the Nucleus, there is likely a boot issue with the Nucleus potentially due to the motherboard. Please complete the below form to get in touch with our RMA department for next steps: