Thanks @TimO much appreciated. All working OK now! It's easy when you know where to look!

Just missing a few packets but I will work on that. Thanks again

Thanks Martin and Gohan

I do appreciate your help.

My installation definitely working OK now without the client configure statement.

Martin, just for clarity, what if my HA was on another IP address?

Would I have used the client configure statement and which one would I have used?

My guess is NO neither is required as MySensors is acting as a server so you just need to make sure HA knows where to find the MySensors server.

Thanks again.

@gohan the benefits are probably marginal if you are competent in linux and have been using HA for a long enough period. In my case I only come back to it occasionally. It means some re-learning is necessary every time. The Hass.IO setup is relatively painless (although not perfect) and then there is a lot more intuitive control of what is happening with the controller.

@martinhjelmare is spot on with his description of what Hass.io is for. I suspect this, in the long run, will be the best way for controllers to work - gradually automating the automations - so the middle of the road hobbyist will be able to stay in the game.

I've setup the MySensors server on a spare Pi and that is good for me. I think it would be nice to have the server available as an add-on in the Hass.io server if anyone was up to the technical challenge.

Thanks for your input.