HA blue: fallen off network again. eth0 does not exist?

Hello again.

My home assistant blue has never quite worked with my network. It runs fine, then once in a while it just falls off the network and refuses any connection. Power cycling eventually brings it back but it’s been a few weeks now and it still won’t reconnect.

My router has an IP reserved for it, and thinks it’s not connected. I’ve tested the cable and it’s fine.

Ha prompt > network info
Shows nothing connected.

Any idea how I get this back?

Cobbling together a few other threads, I tried

net update eth0 —ipv4-method auto

It said the interface didn’t exist.

Never really been sure what eth0 is, anyway. I then tried end0, as that’s listed in the screenshot as an interface

net update end0 —ipv4-method auto

It said it can’t create config and activate. Supervisor end0 is not available because it has no carrier.