Client error on WebSocket API Cannot connect to host

Hi,
I get this error in the system log for Hassio
ERROR (MainThread) [hassio.api.proxy] Client error on WebSocket API Cannot connect to host 172.30.32.1:8123 ssl:False [Connection refused].
I don’t have anything with that IP in my network, anyone know what causes this?

I run Hassio in docker on a Nuc