Unable to connect broker:mqtt and node-red

General
1

I have installed mosquitto broker and Node red in my PC.
I'm able to subscribe and publish messages.
But in Node red i'm unable to connect to mqtt.

17 May 10:46:25 - [info] Starting flows
17 May 10:46:25 - [info] Started flows
17 May 10:46:25 - [info] [mqtt-broker:cb3902d2d36e9b73] Connection failed to broker: mqtt://localhost:1883

2

You might want to install MQTT Explorer if running Windows. You can then test a different connection to the broker. If that doesn't work, I would check the Mosquitto configuration and if that still doesn't turn up the issue, increase Mosquitto's logging level to see what the problem is.

3

Is NR running on the same device as mosquito? As is, you are trying to connect to a broker on the same device. If it is on another device, you need to specify the IP of the device running mosquito.

4

Yes Node Red is running on the same device.
I'm configuring Mqtt node server as localhost:1883

5

What is doing this subscribe and publish?
What device is it on?
Pease show it’s configuration
Please shot the MQTT configuration in node-red

6

Able to resolve it after running NodeRed in host networking mode.

7

So you are using Docker or a VM or some kind of container to run node-red?

This sort of information is really important when asking for help.

1 Like
8

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.