I’m getting the same error after I reinstalled the MQTT Addon and Integration. I can use the MQTT Server just fine. But every time I run this python script. I get the same error message.
I only have a loose understanding of this but the way I understand it is that the 172.xx.xx.x addresses are used by docker to identify different containers, when you install an add-on it gets it’s own container on docker. I don’t think that each add-on has a set IP that it always uses.
So the only troubleshooting step I can think of is uninstalling and reinstalling any add-ons you may of installed to see if this fixes it.
There’s still some sort of underlying bug that is causing internal docker containers to get banned but I couldn’t tell you what it is or how to reproduce it