@Dill
Thanks for your patience. I deleted all the subscriptions, and entered the details again. This was the same as I did before, and got the same results. I looked into my connection settings. The printer IP was not there, instead something like ’ broker#?’ which I had never entered. I think it may have got overwritten with the attempts I made with the subscription tests. I re-entered the ip, and Ii now receive messages from the printer.
I can change the led status (chamber_lamp) with x touch, and I get a report. However, I can’t change it by sending the message from mqttx. I will try changing the temperature/whatever via mqttx. As you said, it now proves a connection has been established, I just have to get the sending side sorted.
(report from printer when lamp status changed via xtouch)
