When connecting the second MQTT client to the Thingspeak channel, the connection is first bursting.

When connecting the second MQTT client to the Thingspeak channel, the connection is first bursting. What could be the reason? Or is it a limitation of a free license?

Answer 1

[Vinod]

If you are using the same triplet of clientid, username and password on multiple devices,only the last connected device will stay connected.

You need a unique combination of clientid, username and password for each device making an mqtt connection.

[Sergey Mukhachev]

Thank you for the hint! I added a new MQTT device in the Devices section, linking to the same channel Thingspeak and received new client ID, Username and Password. Now it works with two customers as expected.