# Node-Red from 172.16.10.1: Client unable to keep up with pending messages. Reached 4096 pending messages. The system's load is too high or an integration is misbehaving;

**URL:** <https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116>\
**Category:** General\
**Tags:** docker, home-assistant, websocket\
**Created:** [7 January 2026 22:52 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116 "2026-01-07T22:52:26Z")\
**Posts on this page:** 14\
**Page:** 1

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**Author:** ![CoderN](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/codern/32/101562_2.png) [@CoderN](https://discourse.nodered.org/u/CoderN)\
**Post date:** [7 January 2026 22:52 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/1 "2026-01-07T22:52:26Z")

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On Home Assistant startup, there is always an error like this pops up:

```auto
2026-01-07 22:23:49.254 ERROR (MainThread) [homeassistant.components.websocket_api.http.connection] [140711007067392] Node-Red from 172.16.10.1: Client unable to keep up with pending messages. Reached 4096 pending messages. The system's load is too high or an integration is misbehaving; Last message was: b'{"type":"event","event":{"a":{"device_tracker.unifi_default_ce_7f_02_83_2d_9e":{"s":"not_home","a":{"source_type":"router","mac":"ce:7f:02:83:2d:9e","host_name":"","oui":"","friendly_name":""},"c":"01KED8Y7G6V52A81RD7TEH41AH","lc":1767824629.2545705}}},"id":7}'

```

What can I do to get rid of it?

**Environment:**  
Node-RED Version: 4.1.3: Maintenance Release  
Node-RED Installation: Docker image nodered/node-red:latest  
Home Assistant Core Version: 2025.12.5  
Home Assistant Frontend Version: 20251203.3  
Node-RED Companion Version 4.2.2  
Home Assistant Installation: Docker image linuxserver/homeassistant:latest

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<div class="post-metadata">

**Author:** ![mikefila](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mikefila/32/95223_2.png) [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Post date:** [8 January 2026 05:09 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/2 "2026-01-08T05:09:18Z")

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Did you search for that entity in your flows? It could be a loop. Switch the debug tab to info and search `device_tracker.unifi_default_ce_7f_02_83_2d_9e`. If you can't get into node red, start in safe mode.

Another possibility is using a misconfigured events all node.

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/1/811b0d5cc4f19c974a18d2550091dcb252198148.png)

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<div class="post-metadata">

**Author:** ![CoderN](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/codern/32/101562_2.png) [@CoderN](https://discourse.nodered.org/u/CoderN)\
**Post date:** [8 January 2026 10:12 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/3 "2026-01-08T10:12:05Z")

</div>

Thanks for your reply.

I have no flow regarding the node `device_tracker.unifi_default_ce_7f_02_83_2d_9e` nor an `events all` node.

I aware that the last message seems to be always `device_tracker.unifi_default_ce_7f_02_83_2d_9e`.

Could elaborate about how to get the steps towards 'switch the debug tab to info'? Is it `Node-RED WebUI`-\>`hamburger menu at top right`-\>`View`-\>`Debug messages`?

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [8 January 2026 11:00 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/4 "2026-01-08T11:00:56Z")

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Are you using [[Guide]Unifi device tracker / presence detection with Node Red - Share your Projects! - Home Assistant Community](https://community.home-assistant.io/t/guide-unifi-device-tracker-presence-detection-with-node-red/200264) or [node-red-contrib-unifi (node) - Node-RED](https://flows.nodered.org/node/node-red-contrib-unifi)?  
If so then that is likely where the message is coming from.

Is the HA startup error always the same (including the unifi bit)?

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<div class="post-metadata">

**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:** [8 January 2026 11:18 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/5 "2026-01-08T11:18:00Z")

</div>

Hi.

I am pretty sure this is a Home Assistant Issue (or a HA plugin) and not a Node-RED thing.

I would start by looking through the below for clues...

- [Client unable to keep up with pending messages. Reached 4096 pending messages · Issue #91400 · home-assistant/core · GitHub](https://github.com/home-assistant/core/issues/91400)
- [Client exceeded max pending messages-\> what is causing? - #9 by homonto - Configuration - Home Assistant Community](https://community.home-assistant.io/t/client-exceeded-max-pending-messages-what-is-causing/538320/9)
- [Client unable to keep up with pending messages. Stayed over 512 for 5 seconds. The system's load is too high or an integration is misbehaving · Issue #82562 · home-assistant/core · GitHub](https://github.com/home-assistant/core/issues/82562)
- [Client exceeded max pending messages [2]: 512 after switching to using websocket · Issue #5 · PiotrMachowski/Home-Assistant-Lovelace-HTML-Jinja2-Template-card · GitHub](https://github.com/PiotrMachowski/Home-Assistant-Lovelace-HTML-Jinja2-Template-card/issues/5)
- [more...](https://www.google.com/search?q=homeassistant.components.websocket_api.http.connection+Client+unable+to+keep+up+with+pending+messages.+Reached+4096+pending+messages.&oq=homeassistant.components.websocket_api.http.connection+Client+unable+to+keep+up+with+pending+messages.+Reached+4096+pending+messages)

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<div class="post-metadata">

**Author:** ![mikefila](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mikefila/32/95223_2.png) [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Post date:** [8 January 2026 21:22 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/6 "2026-01-08T21:22:41Z")

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If you click the `i` button, it will show a search box that you can use to search your flows.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/6/36fc7176260006a384b348f5087ed7c3ac3e8239.png)

In that same location, choose the config option. Look for the home assistant server node. There should only be one entry. If there are multiple delete the extras. You may need to open and close the nodes that were using the extra servers.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/8/f/8f4f68f5981ec967af33c995856612f1192ddf37.png)

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<div class="post-metadata">

**Author:** ![CoderN](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/codern/32/101562_2.png) [@CoderN](https://discourse.nodered.org/u/CoderN)\
**Post date:** [8 January 2026 22:13 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/7 "2026-01-08T22:13:43Z")

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Thanks for your help.

However, I have not installedany unifi related nodes as shown below:

 ![Screenshot 2026-01-08 at 22.10.53](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/d/0/d0bd1d73bd000df3d963aa3492cd96841b38e096.png)

HA startup always has this error while starting up and the last error is always "device\_tracker.unifi\_default\_4a\_21\_61\_55\_95\_38" as well.

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<div class="post-metadata">

**Author:** ![CoderN](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/codern/32/101562_2.png) [@CoderN](https://discourse.nodered.org/u/CoderN)\
**Post date:** [8 January 2026 22:32 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/8 "2026-01-08T22:32:42Z")

</div>

Thanks for your help.

The node `device_tracker.unifi_default_4a_21_61_55_95_38` does not exist on the 2 flows I have.

On the other hand, I do have 2 instances of HA's connect to Node-RED. The main reason is that I would like to pass some entities from one of them to the other.

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<div class="post-metadata">

**Author:** ![CoderN](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/codern/32/101562_2.png) [@CoderN](https://discourse.nodered.org/u/CoderN)\
**Post date:** [8 January 2026 23:02 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/9 "2026-01-08T23:02:30Z")

</div>

You are definitely right. It is the fault of UniFi Network integration. The UniFi Network integration has created thousands of devices and entities. I guess they are created by the docker containers I created and updated over the years.

There is no way to remove those devices and entities other than deleting the integration and add again.

The error was gone from startup after I removed the UniFi Network integration and add again.

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<div class="post-metadata">

**Author:** ![mikefila](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mikefila/32/95223_2.png) [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Post date:** [9 January 2026 16:57 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/10 "2026-01-09T16:57:58Z")

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> [@CoderN](#):
>
> There is no way to remove those devices and entities other than deleting the integration

Unifi can be reconfigured at anytime without removing it. On the integration page click the gear icon. That will bring up the config options. It sounds like during setup you checked the box to create tx and rx entities.

If unchecked the entities are still created but they will all be disabled. You can then enable them on an as needed basis.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/7/7/7719f29af8ef8413f0d4c27aedeb37de494d9013.png)

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<div class="post-metadata">

**Author:** ![CoderN](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/codern/32/101562_2.png) [@CoderN](https://discourse.nodered.org/u/CoderN)\
**Post date:** [10 January 2026 19:14 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/11 "2026-01-10T19:14:04Z")

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I am not sure I understand what you said.

As illustrated below, the devices are created automatically even though I have not checked the box.

 ![Screenshot 2026-01-10 at 19.11.00](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/2/0234badd12afe9c38abdb6991999be365602afbb.jpeg)

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<div class="post-metadata">

**Author:** ![mikefila](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/mikefila/32/95223_2.png) [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Post date:** [10 January 2026 21:54 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/12 "2026-01-10T21:54:17Z")

</div>

That is the first click of the gear, if you go to the next page. You can uncheck track network clients. That will stop it from enabling all the devices on the network.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/4/f/4f220e758d89a7c4f33d5fffc0413b58f47d0257.png)

On the 3rd page you can set the tx/rx sensors to be disabled by default.

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/5/35b1f5a100073a265ff828666b94ee14d3d75a7b.png)

Then you can enable only the sensors and device trackers that you need.

That first page lets you create kill switches for specific network clients.

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<div class="post-metadata">

**Author:** ![CoderN](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/codern/32/101562_2.png) [@CoderN](https://discourse.nodered.org/u/CoderN)\
**Post date:** [13 January 2026 14:37 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/13 "2026-01-13T14:37:58Z")

</div>

Thank you for your elaborated explanation. I understand now.

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<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:** [27 January 2026 14:38 UTC](https://discourse.nodered.org/t/node-red-from-172-16-10-1-client-unable-to-keep-up-with-pending-messages-reached-4096-pending-messages-the-systems-load-is-too-high-or-an-integration-is-misbehaving/100116/14 "2026-01-27T14:38:44Z")

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