Newbie here - hi. And I mean new I. New to Arduino/MQTT/Node-Red etc.
I’m running Arduino Mkr1010 controllers communicating via WiFi, MQTT to Node-Red on a laptop. All goes well running a single arduino. Can subscribe, publish etc. My problem occurs when I try with two arduinos. The second keeps disconnecting from MQTT.
Is there anything obvious I should try? Or would you prefer to see code etc?