Network/connection issues

Hi!
Haven't used my VCore in a while, and when I went to fire it up now, it will not connect to my network.
I have a mesh network (Deco M5) with the machine connected on a fixed IP via ethernet cable from one of the nodes. Everything has worked perfectly before, but now it doesn't even show up in the list of connected devices on the network.
Where should I start troubleshooting?