I tried the MQTT capabilities of version V2.7.8 but cannot succeed = always got "connected no".
While emoncms connection is working I also tried to activate MQTT, put test.mosquitto.org as Host, put a generic name in "base topic" left username and password empty since there is no authentification but never got a connection. neither data published (tested with MyMQTT from mobile).
Also started a mosquitto server on a dedicated server on internet, setup with IP address as "Host" but same result.
Am I doing something wrong ? or something is broken in V2.7.8 ?
Do you have a firewall or proxy that may be blocking external connections to the MQTT ports?