Cannot Find My Roon Nucleus Again

This happened again yesterday. 11/2/21. Unplugged everything, plugged everything back again and waited to come home today. Can’t find Roon again. Went the the IP address website and the Roon Nucleus is not on the list of devices connected to the router (the Nucleus is hard-wired).

Frustrated. This can’t happen every 2 months.

Roon Support: please contact me.