# MQTT Connection lost by node-red

**URL:** <https://discourse.nodered.org/t/mqtt-connection-lost-by-node-red/38740>\
**Category:** General\
**Created:** [7 January 2021 18:14 UTC](https://discourse.nodered.org/t/mqtt-connection-lost-by-node-red/38740 "2021-01-07T18:14:37Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![UnborN](https://avatars.discourse-cdn.com/v4/letter/u/4491bb/32.png) [@UnborN](https://discourse.nodered.org/u/UnborN)\
**Post date:** [8 January 2021 20:37 UTC](https://discourse.nodered.org/t/mqtt-connection-lost-by-node-red/38740/12 "2021-01-08T20:37:26Z")

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> [@matschie](#):
>
> Re-create the Mosquitto Docker with or without mounted folders for log/lib

you mention that you recreated the Docker image

There were some breaking changes in mosquitto broker as described in this link  
**[Version 2.0.0 released](https://mosquitto.org/blog/2020/12/version-2-0-0-released/)**  
by _default_ now mosquitto is not open to connections except to localhost / 127.0.0.1

possibly it could be a similar issue as described in this very recent post

> [@Nodemcu cannot connect to mqtt](https://discourse.nodered.org/t/nodemcu-cannot-connect-to-mqtt/38384/34):
>
> is the broker configured to only listen to local connections ?

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