more than one Nodemcu clients can't able to get published message at a time

[Rajeshtechgeek]

i used this library in my two Node mcu's. Both Node mcu subscribes to the same topic.But when i publish a message to that topic, only one Node mcu can able to receive at a time.I need to publish message again so that My second node mcu able to get the message.but my windows pc MQTT Lens receiving all the messsages.what will be the issue?

[Urs-Eppenberger]

MQTT uses a client ID to distinguish between different clients.
Check the following command:
mqttClient.connect(clientID)
If you use the same value of clientID on both Node MCU boards, then only one is working, the other one gets the connection reset.

I'm not sure if this is the problem, but I stumbled over this myself. So it was worth a shot.