I've created a very simple stream on data.sparkfun.com with one field/data item. I'm trying to use the eclipse paho MQTT utility to publish data to that stream and I'm striking out. I am able to connect to the server (data.sparkfun.com:1883, using a generic username, and the public key from my data stream as password), but as soon as I try to publish data it disconnects and nothing is published. For what its worth, I don't really care what the MQTT client is so if there is another suggestion thats great too. I'd really appreciate any advice.