# No MQTT In after updates

**URL:** https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246
**Category:** General
**Created:** [26 January 2026 08:53 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246 "2026-01-26T08:53:25Z")
**Posts on this page:** 8
**Page:** 1

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### Author: ![acestu](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/acestu/32/90408_2.png) [@acestu](https://discourse.nodered.org/u/acestu)
#### Post date: [26 January 2026 08:53 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/1 "2026-01-26T08:53:25Z")

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Hi,

On Friday I noticed that the update icon was on the top bar so i installed the updates, however after this I noticed that my gauges were not working, I restarted the Raspberry Pi but in the Debug window I am getting this and the mqtt nodes no longer say connected.

Thanks

 ![Screenshot 2026-01-26 at 08-51-52 Node-RED Flow 1](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/5/d5f239023ba95a1fd0e72e60da3d54123100ad72.png)

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### Author: ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [26 January 2026 09:10 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/2 "2026-01-26T09:10:45Z")

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Any more details?

What did you update - just node packages? node-red? nodejs? everything?

> [@acestu](#):
>
> restarted the Raspberry Pi

This can also happen if there is slight file corruption. Assuming you run from an SD card, this sort of thing can occur when SD cards start to fail.

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### Author: ![jbudd](https://avatars.discourse-cdn.com/v4/letter/j/5f8ce5/32.png) [@jbudd](https://discourse.nodered.org/u/jbudd)
#### Post date: [26 January 2026 09:18 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/3 "2026-01-26T09:18:38Z")

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I think I've seen something similar.

After opening one of the mqtt config nodes, clicking OK and deploying it started working again.

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### Author: ![acestu](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/acestu/32/90408_2.png) [@acestu](https://discourse.nodered.org/u/acestu)
#### Post date: [26 January 2026 10:01 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/4 "2026-01-26T10:01:31Z")

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Hi Steve,

I clicked the update icon that appears on the top bar of the raspberry pi and installed them

Thanks

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### Author: ![acestu](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/acestu/32/90408_2.png) [@acestu](https://discourse.nodered.org/u/acestu)
#### Post date: [26 January 2026 10:01 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/5 "2026-01-26T10:01:58Z")

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Hi Jbudd,

Thanks I will try that now

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### Author: ![acestu](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/acestu/32/90408_2.png) [@acestu](https://discourse.nodered.org/u/acestu)
#### Post date: [27 January 2026 08:51 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/6 "2026-01-27T08:51:56Z")

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Hi Guys,

I tried all sorts to get it back but to no avail, luckily I had just started making backups so i had an archive handy, I replaced all of the files in the .node-red directory and when restarted 3 or 4 node types were missing and I presume that they must of been installed differently, when I replaced the nodes and restarted node-red everything started working again.

P.S.  
I took the usb stick home to try and replicate this on my Mac but found out that you cant read ext4 on a standard Mac so I ran a virtual machine and still ran into problems, what I learned is transfer the archive and not the files as you get errors saying the system does not support symbols.

Thanks

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### Author: ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)
#### Post date: [27 January 2026 09:08 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/7 "2026-01-27T09:08:30Z")

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Glad you had backups.

I have been caught out a few times without them.

But glad to hear it is now all working.

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### Author: ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)
#### Post date: [10 February 2026 09:09 UTC](https://discourse.nodered.org/t/no-mqtt-in-after-updates/100246/8 "2026-02-10T09:09:00Z")

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