# Node-red-contrib-aws-iot-hub 0.1.14 Only one instance of "aws-mqtt-in" works

**URL:** <https://discourse.nodered.org/t/node-red-contrib-aws-iot-hub-0-1-14-only-one-instance-of-aws-mqtt-in-works/69398>\
**Category:** General\
**Tags:** mqtt\
**Created:** [21 October 2022 19:30 UTC](https://discourse.nodered.org/t/node-red-contrib-aws-iot-hub-0-1-14-only-one-instance-of-aws-mqtt-in-works/69398 "2022-10-21T19:30:23Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Wirewrap](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/wirewrap/32/36613_2.png) [@Wirewrap](https://discourse.nodered.org/u/Wirewrap)\
**Post date:** [21 October 2022 19:30 UTC](https://discourse.nodered.org/t/node-red-contrib-aws-iot-hub-0-1-14-only-one-instance-of-aws-mqtt-in-works/69398/1 "2022-10-21T19:30:24Z")

</div>

I have installed node-red-contrib-aws-iot-hub 0.1.14  
on  
node-red v2.2.2 and node.js v12.22.12

I can connect to an AWS MQTT broker  
I can send and receive MQTT messages via "aws-mqtt out" and"aws-mqtt in"

However, if I have several instances of "aws-mqtt in" defined, only one instance will work, all others will show "subscribing... " and will not receive any messages.

If I disable the working instance of "aws-mqtt in" another instance will start working.

How to diagnose this?

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [20 December 2022 19:30 UTC](https://discourse.nodered.org/t/node-red-contrib-aws-iot-hub-0-1-14-only-one-instance-of-aws-mqtt-in-works/69398/2 "2022-12-20T19:30:24Z")

</div>

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.