I'm trying to update the code on my 3 mcModules (legacy versions). It worked successfully for two, but I can't connect to the 3rd. I have tried shutting down mcStudio and power-cycling the mcGateway. I also successfully reloaded the firmware onto the mcModule using mcOTA just in case. When I connect to the Gateway using the "Device Maintenace and Connection" screen, it shows up as beaconing. Then, as with the other mcModules, I take the battery out, click Connect and re-insert the battery. However it never connects.

This mcModule is blinking green then red every few seconds, whereas the others do not. My code would not be causing this, although my code is still running on the mcModule, as every 30 minutes it's sending MQTT messages.

Any thoughts on what to do?

I'm trying this for the first time and not having much luck. I have Mosquitto installed in a Docker container running under Ubuntu. On my laptop I can run MQTT.fx and successfully publish and subscribe. I also have Home Assistant connected, and it can respond to the messages published from MQTT.fx too.

I have the following code running on a mcModule110:

Class TestHeartbeat
    Shared Event SendMessage() RaiseEvent Every 15 Seconds
        Dim payload As ListOfByte = New ListOfByte()
        payload.Add("testing")
        Lplan.Publish("heartbeat", payload)
        LedGreen = Not LedGreen
    End Event
End Class

And I have the mcGate110 config set to my Mosquitto server (192.168.0.39:1883). The green LED goes on and off every 15 seconds, but no messages arrive at either MQTT.fx or Home Assistant. And MQTT.fx can scan for topics, but nothing shows up. Any help would be much appreciated.