# Node-red dropping connection to external services extremely often
**URL:** https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717
**Category:** General
**Created:** [2 October 2023 09:49 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717 "2023-10-02T09:49:25Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@dclear](https://discourse.nodered.org/u/dclear)
#### Post date: [2 October 2023 09:49 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/1 "2023-10-02T09:49:25Z")
Suddenly Node-Red is dropping connections to MQTT brokers and an IMAP server extremely often, like once every 10 seconds or so. It's been rock solid for a couple of years prior to this.
I thought it must be the internet connection so I ran a ping to 8.8.8.8 and observed what Node-Red was doing. Node-Red lost connections while the ping continued to return just fine.
Any ideas how I can troubleshoot?
Thank you!
---
### Author:  [@zenofmud](https://discourse.nodered.org/u/zenofmud)
#### Post date: [2 October 2023 10:14 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/2 "2023-10-02T10:14:11Z")
Did you make any changes/updates lately?
What platform(s) are node-red and your mqtt broker running on?
What version of NR are you running?
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [2 October 2023 10:28 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/3 "2023-10-02T10:28:01Z")
Also stop node-red and start it again in a command window and see if there are any messages shown. Post the log here if necessary. Copy/paste please, not screenshot.
---
### Author:  [@dclear](https://discourse.nodered.org/u/dclear)
#### Post date: [2 October 2023 10:43 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/4 "2023-10-02T10:43:44Z")
Interesting. I ran a ping to the host 192.168.194.22 that kept disconnecting and there are some long pings - wonder if the MQTT server just isn't able to maintain a reliable connection?
```auto
===================
2 Oct 11:36:21 - [info] Node-RED version: v1.0.2
2 Oct 11:36:21 - [info] Node.js version: v8.16.0
2 Oct 11:36:21 - [info] Linux 3.10.0-1127.19.1.el7.x86_64 x64 LE
2 Oct 11:36:22 - [info] Loading palette nodes
2 Oct 11:36:28 - [info] Dashboard version 2.22.1 started at /ui
2 Oct 11:36:29 - [info] Settings file : /root/.node-red/settings.js
2 Oct 11:36:29 - [info] Context store : 'default' [module=memory]
2 Oct 11:36:29 - [info] User directory : /root/.node-red
2 Oct 11:36:29 - [warn] Projects disabled : editorTheme.projects.enabled=false
2 Oct 11:36:29 - [info] Flows file : /root/.node-red/flows_freepbx.sangoma.local.json
2 Oct 11:36:29 - [info] Server now running at http://127.0.0.1:1880/
2 Oct 11:36:29 - [warn]
---------------------------------------------------------------------
Your flow credentials file is encrypted using a system-generated key.
If the system-generated key is lost for any reason, your credentials
file will not be recoverable, you will have to delete it and re-enter
your credentials.
You should set your own key using the 'credentialSecret' option in
your settings file. Node-RED will then re-encrypt your credentials
file using your chosen key the next time you deploy a change.
---------------------------------------------------------------------
2 Oct 11:36:29 - [info] Starting flows
2 Oct 11:36:29 - [info] Started flows
2 Oct 11:36:30 - [info] [mqtt-broker:hass] Connected to broker: node-red@mqtt://192.168.2.30:1883
2 Oct 11:36:30 - [info] [mqtt-broker:homehass] Connected to broker: noderedmacmini@mqtt://192.168.194.22:1883
2 Oct 11:36:45 - [info] [mqtt-broker:homehass] Disconnected from broker: noderedmacmini@mqtt://192.168.194.22:1883
2 Oct 11:37:00 - [info] [mqtt-broker:homehass] Connected to broker: noderedmacmini@mqtt://192.168.194.22:1883
2 Oct 11:37:15 - [info] [mqtt-broker:homehass] Disconnected from broker: noderedmacmini@mqtt://192.168.194.22:1883
2 Oct 11:37:30 - [info] [mqtt-broker:homehass] Connected to broker: noderedmacmini@mqtt://192.168.194.22:1883
2 Oct 11:37:42 - [info] Stopping flows
2 Oct 11:37:42 - [info] Stopped flows
```
```auto
64 bytes from 192.168.194.22: icmp_seq=10 ttl=64 time=235 ms
64 bytes from 192.168.194.22: icmp_seq=11 ttl=64 time=163 ms
64 bytes from 192.168.194.22: icmp_seq=12 ttl=64 time=78.5 ms
64 bytes from 192.168.194.22: icmp_seq=13 ttl=64 time=101 ms
64 bytes from 192.168.194.22: icmp_seq=14 ttl=64 time=100 ms
64 bytes from 192.168.194.22: icmp_seq=15 ttl=64 time=53.6 ms
64 bytes from 192.168.194.22: icmp_seq=16 ttl=64 time=50.4 ms
64 bytes from 192.168.194.22: icmp_seq=17 ttl=64 time=201 ms
64 bytes from 192.168.194.22: icmp_seq=18 ttl=64 time=131 ms
64 bytes from 192.168.194.22: icmp_seq=19 ttl=64 time=150 ms
64 bytes from 192.168.194.22: icmp_seq=20 ttl=64 time=180 ms
64 bytes from 192.168.194.22: icmp_seq=21 ttl=64 time=115 ms
64 bytes from 192.168.194.22: icmp_seq=22 ttl=64 time=87.4 ms
64 bytes from 192.168.194.22: icmp_seq=23 ttl=64 time=128 ms
64 bytes from 192.168.194.22: icmp_seq=24 ttl=64 time=164 ms
64 bytes from 192.168.194.22: icmp_seq=25 ttl=64 time=206 ms
64 bytes from 192.168.194.22: icmp_seq=26 ttl=64 time=65.0 ms
64 bytes from 192.168.194.22: icmp_seq=27 ttl=64 time=158 ms
64 bytes from 192.168.194.22: icmp_seq=29 ttl=64 time=78.1 ms
64 bytes from 192.168.194.22: icmp_seq=30 ttl=64 time=111 ms
64 bytes from 192.168.194.22: icmp_seq=31 ttl=64 time=61.2 ms
64 bytes from 192.168.194.22: icmp_seq=32 ttl=64 time=103 ms
64 bytes from 192.168.194.22: icmp_seq=33 ttl=64 time=74.9 ms
64 bytes from 192.168.194.22: icmp_seq=34 ttl=64 time=111 ms
64 bytes from 192.168.194.22: icmp_seq=35 ttl=64 time=81.1 ms
64 bytes from 192.168.194.22: icmp_seq=36 ttl=64 time=50.9 ms
64 bytes from 192.168.194.22: icmp_seq=37 ttl=64 time=50.6 ms
64 bytes from 192.168.194.22: icmp_seq=39 ttl=64 time=55.5 ms
64 bytes from 192.168.194.22: icmp_seq=40 ttl=64 time=56.3 ms
64 bytes from 192.168.194.22: icmp_seq=41 ttl=64 time=53.6 ms
64 bytes from 192.168.194.22: icmp_seq=42 ttl=64 time=66.9 ms
64 bytes from 192.168.194.22: icmp_seq=43 ttl=64 time=96.4 ms
64 bytes from 192.168.194.22: icmp_seq=44 ttl=64 time=153 ms
64 bytes from 192.168.194.22: icmp_seq=45 ttl=64 time=76.4 ms
64 bytes from 192.168.194.22: icmp_seq=46 ttl=64 time=55.7 ms
64 bytes from 192.168.194.22: icmp_seq=47 ttl=64 time=149 ms
64 bytes from 192.168.194.22: icmp_seq=48 ttl=64 time=167 ms
64 bytes from 192.168.194.22: icmp_seq=49 ttl=64 time=204 ms
64 bytes from 192.168.194.22: icmp_seq=50 ttl=64 time=60.1 ms
64 bytes from 192.168.194.22: icmp_seq=51 ttl=64 time=94.6 ms
64 bytes from 192.168.194.22: icmp_seq=52 ttl=64 time=174 ms
64 bytes from 192.168.194.22: icmp_seq=53 ttl=64 time=109 ms
64 bytes from 192.168.194.22: icmp_seq=54 ttl=64 time=138 ms
64 bytes from 192.168.194.22: icmp_seq=55 ttl=64 time=115 ms
64 bytes from 192.168.194.22: icmp_seq=56 ttl=64 time=50.7 ms
64 bytes from 192.168.194.22: icmp_seq=57 ttl=64 time=61.0 ms
64 bytes from 192.168.194.22: icmp_seq=58 ttl=64 time=58.4 ms
64 bytes from 192.168.194.22: icmp_seq=59 ttl=64 time=50.9 ms
64 bytes from 192.168.194.22: icmp_seq=60 ttl=64 time=144 ms
64 bytes from 192.168.194.22: icmp_seq=61 ttl=64 time=56.0 ms
64 bytes from 192.168.194.22: icmp_seq=62 ttl=64 time=82.0 ms
64 bytes from 192.168.194.22: icmp_seq=63 ttl=64 time=101 ms
64 bytes from 192.168.194.22: icmp_seq=64 ttl=64 time=59.4 ms
64 bytes from 192.168.194.22: icmp_seq=65 ttl=64 time=67.9 ms
64 bytes from 192.168.194.22: icmp_seq=66 ttl=64 time=111 ms
64 bytes from 192.168.194.22: icmp_seq=67 ttl=64 time=133 ms
64 bytes from 192.168.194.22: icmp_seq=68 ttl=64 time=57.9 ms
64 bytes from 192.168.194.22: icmp_seq=69 ttl=64 time=80.9 ms
64 bytes from 192.168.194.22: icmp_seq=70 ttl=64 time=61.3 ms
64 bytes from 192.168.194.22: icmp_seq=71 ttl=64 time=95.2 ms
64 bytes from 192.168.194.22: icmp_seq=72 ttl=64 time=50.6 ms
64 bytes from 192.168.194.22: icmp_seq=73 ttl=64 time=57.9 ms
64 bytes from 192.168.194.22: icmp_seq=74 ttl=64 time=127 ms
64 bytes from 192.168.194.22: icmp_seq=75 ttl=64 time=208 ms
64 bytes from 192.168.194.22: icmp_seq=76 ttl=64 time=76.4 ms
64 bytes from 192.168.194.22: icmp_seq=77 ttl=64 time=75.7 ms
64 bytes from 192.168.194.22: icmp_seq=78 ttl=64 time=108 ms
64 bytes from 192.168.194.22: icmp_seq=79 ttl=64 time=49.8 ms
64 bytes from 192.168.194.22: icmp_seq=80 ttl=64 time=51.0 ms
64 bytes from 192.168.194.22: icmp_seq=81 ttl=64 time=145 ms
64 bytes from 192.168.194.22: icmp_seq=82 ttl=64 time=55.0 ms
64 bytes from 192.168.194.22: icmp_seq=83 ttl=64 time=49.5 ms
64 bytes from 192.168.194.22: icmp_seq=84 ttl=64 time=54.1 ms
64 bytes from 192.168.194.22: icmp_seq=85 ttl=64 time=54.2 ms
64 bytes from 192.168.194.22: icmp_seq=86 ttl=64 time=56.9 ms
64 bytes from 192.168.194.22: icmp_seq=87 ttl=64 time=158 ms
64 bytes from 192.168.194.22: icmp_seq=88 ttl=64 time=208 ms
64 bytes from 192.168.194.22: icmp_seq=89 ttl=64 time=122 ms
64 bytes from 192.168.194.22: icmp_seq=90 ttl=64 time=177 ms
64 bytes from 192.168.194.22: icmp_seq=91 ttl=64 time=149 ms
64 bytes from 192.168.194.22: icmp_seq=92 ttl=64 time=70.9 ms
```
---
### Author:  [@dclear](https://discourse.nodered.org/u/dclear)
#### Post date: [2 October 2023 10:44 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/5 "2023-10-02T10:44:40Z")
Haven't made any changes recently
Running Node-Red on a FreePBX CentOS server.
Running NR 1.0.2
---
### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [2 October 2023 10:59 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/6 "2023-10-02T10:59:29Z")
Have a look at the mqtt server log on the server. If it is mosquitto it may be /var/log/mosquitto/mosquitto.log
When you say you have not made any changes do you mean literally that? No changes to flows or anything? That sort of regular connect/disconnect can happen if you have multiple connections with the same client id.
---
### Author:  [@jbudd](https://discourse.nodered.org/u/jbudd)
#### Post date: [2 October 2023 11:03 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/7 "2023-10-02T11:03:09Z")
Does it make any difference if you disable the mqtt broker on 192.168.2.30?
---
### Author:  [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [2 October 2023 14:51 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/8 "2023-10-02T14:51:10Z")
Is your remote MQTT server running Mosquitto or something else? Is it running on bare metal or in a container or VM?
For Mosquitto, you may need to turn up the logging on the remote MQTT server.
Also check for errors and performance issues on the remote MQTT server.
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [1 December 2023 14:51 UTC](https://discourse.nodered.org/t/node-red-dropping-connection-to-external-services-extremely-often/81717/9 "2023-12-01T14:51:56Z")
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