[SOLVED] MQTT not connecting to nodemcu

Hardware Home Automation
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84

Thanks my friends, I reviewed everything, my openHAB is working with MQTT but ESP32 thing is not connected to the MQTT broker.

Please see the attachments and help why it is not connected. Thanks in advance.

MQTT broker
MQTT broker1019×387 16.8 KB
Program 2 Program Serial

85

Change your ESP32 client ID to something else
OR
Change your MQTT client in the screen shot.
It says very clearly thqt clients ID MUST be unique

86

Thanks man, I keep MQTT client ID same such as openHAB2 but change the ESP32 Client ID like openHABIB but still the same error.

Program
Program1314×374 33.9 KB

87

Remove the wifi and password from the post above unless your have changed them.
Any username and password needed to connect to the broker?