# Connection Problem Windows 11

**URL:** https://discourse.nodered.org/t/connection-problem-windows-11/70205
**Category:** Dashboard
**Created:** [7 November 2022 10:15 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205 "2022-11-07T10:15:28Z")
**Posts on this page:** 19
**Page:** 1

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### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [7 November 2022 10:15 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/1 "2022-11-07T10:15:28Z")

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Hello  
I have a Intel NUC with Node-Red and Mosquitto Broker. Localhost:1880 works perfect.  
There is no connection with TCIP from a Laptop in the same Network. I tried to open the port 1880 with In- and Outbound rules. No success. The port is not open. I setted up Node-Red on my Macbook pro no connection to the UI on the Intel NUC. From all devices access to the Mosquitto Broker on the NUC works.  
From my Laptop i can acces the UI on my Macbook. Is Node-Red blocking the port?  
Thanks

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### 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: [7 November 2022 10:46 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/2 "2022-11-07T10:46:11Z")

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To make sure I understand

1. You have node red and mosquitto running on the NUC
2. From a laptop you can connect to mosquitto on the NUC
3. From the laptop and a Macbook, in a browser, you cannot access node-red on the NUC
4. Running a browser on the NUC you _can_ access node red using localhost.

What happens if, on the NUC you try to access node red using the IP of the NUC instead of localhost?  
Is node-red running in docker or something similar?

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### Author: ![EmilWesselink](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/emilwesselink/32/65829_2.png) [@EmilWesselink](https://discourse.nodered.org/u/EmilWesselink)
#### Post date: [7 November 2022 10:50 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/3 "2022-11-07T10:50:08Z")

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I just checked it here on a just newly updated laptop to windows 11 and it works as expected. From my phone on the same network I can acces iplaptop:1880 without any other configuration

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### 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: [7 November 2022 10:51 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/4 "2022-11-07T10:51:54Z")

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> [@EmilWesselink](#):
>
> I just checked it here on a just newly updated laptop to windows 11 and it works as expected.

What works as expected? You can access the NUC?

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### Author: ![EmilWesselink](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/emilwesselink/32/65829_2.png) [@EmilWesselink](https://discourse.nodered.org/u/EmilWesselink)
#### Post date: [7 November 2022 10:53 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/5 "2022-11-07T10:53:39Z")

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I am not the topic starter 😉 . I just answered him also because I was curious because just updated to windows 11. I think there is something else wrong.

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### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [7 November 2022 11:03 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/6 "2022-11-07T11:03:19Z")

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On the NUC via IP the connection is refused.  
There is no docker running.

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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: [7 November 2022 11:11 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/7 "2022-11-07T11:11:35Z")

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Can you take a snapshot of the screen so we can see what you see when the connection is redused?

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### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [7 November 2022 11:32 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/8 "2022-11-07T11:32:22Z")

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Sorry cannot attach a photo

The message is:  
x.x.x.x. refused to connect.  
Try:  
Search the web for x.x.x.x  
Checking the connection  
Checking the proxy and the firewall  
ERR\_CONNECTION\_REFUSED

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### 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: [7 November 2022 11:36 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/9 "2022-11-07T11:36:06Z")

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> [@Erich](#):
>
> Sorry cannot attach a photo

You can paste an image here directly

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### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [7 November 2022 11:37 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/10 "2022-11-07T11:37:22Z")

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![Image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/3/13c87cbeca769d4711a88b08a06da0214fd3f5d6.jpeg)  
Ok thanks.

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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: [7 November 2022 11:49 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/11 "2022-11-07T11:49:35Z")

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I was hoping to see what you put in the URL bar too, but I assume it was **192.168.18.200:1880**?

Does the laptop you are trying to connect from also have an IP address 192.168.18.n ?

It might be worth resetting networking on the PC - **netsh int ip reset** as an administrator and reboot.

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### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [7 November 2022 11:55 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/12 "2022-11-07T11:55:41Z")

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yes the port is 1880 and the laptop is on the same network with 192.168.18.xx.  
I try to reset the networking.

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### 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: [7 November 2022 12:00 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/13 "2022-11-07T12:00:02Z")

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Are you running windows on the NUC?

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### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [7 November 2022 23:51 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/14 "2022-11-07T23:51:51Z")

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Yes Windows 11 Pro

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### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [8 November 2022 00:40 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/15 "2022-11-08T00:40:43Z")

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Good morning  
Problem solved. I uninstalled node.js then reinstalled v18.12.1 with the Windows installer.  
I have not selected the additional tools during setup.  
Now i have access to the editor and UI with the IP address from the NUC  
Thanks!

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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 November 2022 09:04 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/16 "2022-11-08T09:04:24Z")

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Just to note that if you did not install the tools then you may have problems installing nodes that need to be built when they are installed.

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<div class="post-metadata">

### Author: ![Erich](https://avatars.discourse-cdn.com/v4/letter/e/ea5d25/32.png) [@Erich](https://discourse.nodered.org/u/Erich)
#### Post date: [8 November 2022 09:37 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/17 "2022-11-08T09:37:46Z")

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OK Thanks for the info.  
When i need one of this tools then i try to install manually.

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### Author: ![TotallyInformation](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/totallyinformation/32/31_2.png) [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)
#### Post date: [8 November 2022 15:20 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/18 "2022-11-08T15:20:31Z")

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Or just reinstall using the Windows installer and select the option, that does not affect any existing code.

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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: [22 November 2022 15:21 UTC](https://discourse.nodered.org/t/connection-problem-windows-11/70205/19 "2022-11-22T15:21:03Z")

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