# How to connect to Node red?

**URL:** <https://discourse.nodered.org/t/how-to-connect-to-node-red/48341>\
**Category:** General\
**Created:** [13 July 2021 01:47 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341 "2021-07-13T01:47:04Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![jlian168](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jlian168/32/43737_2.png) [@jlian168](https://discourse.nodered.org/u/jlian168)\
**Post date:** [13 July 2021 01:47 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/1 "2021-07-13T01:47:04Z")

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Dear All :

After I clean chrome history and cookie...That cant connect to 127.0.0.1:1883  
but dos command is show 127.0.0.1:1883  
What happened?

Thank u.

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**Author:** ![DrdP](https://avatars.discourse-cdn.com/v4/letter/d/b5ac83/32.png) [@DrdP](https://discourse.nodered.org/u/DrdP)\
**Post date:** [13 July 2021 01:51 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/2 "2021-07-13T01:51:23Z")

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perhaps try 127.0.0.1:1880

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**Author:** ![jlian168](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jlian168/32/43737_2.png) [@jlian168](https://discourse.nodered.org/u/jlian168)\
**Post date:** [13 July 2021 01:59 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/3 "2021-07-13T01:59:33Z")

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Dear Drdp :

It cant too

Thank u.

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**Author:** ![jlian168](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jlian168/32/43737_2.png) [@jlian168](https://discourse.nodered.org/u/jlian168)\
**Post date:** [13 July 2021 05:14 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/4 "2021-07-13T05:14:10Z")

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Dear All :

I dont know why?  
Anyone knows?

Thank u.

 ![螢幕擷取畫面 2021-07-13 131140](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/3/330ce14157dd0b4123d35694d6f203b3a130c249.jpeg)  
 ![螢幕擷取畫面 2021-07-13 131220](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/a/9/a9eb6bfa9978f23323740e3614afc4950dbb7939.jpeg)

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**Author:** ![jlian168](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jlian168/32/43737_2.png) [@jlian168](https://discourse.nodered.org/u/jlian168)\
**Post date:** [13 July 2021 05:24 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/5 "2021-07-13T05:24:30Z")

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Dear All :

Now I can see it.

Thank u.

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**Author:** ![MecatronicaMADE](https://avatars.discourse-cdn.com/v4/letter/m/ce7236/32.png) [@MecatronicaMADE](https://discourse.nodered.org/u/MecatronicaMADE)\
**Post date:** [13 July 2021 14:53 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/6 "2021-07-13T14:53:55Z")

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Hi @jlian168 .  
The default port for node-RED is 1880 -\> 127.0.0.1:1880  
the port for MQTT communication is 1883 -\> 127.0.0.1:1883

so, when you started node-RED you could see: "Server now running at [http://127.0.0.1:1880/](http://127.0.0.1:1880/)"

and when you have MQTT nodes configurated, these is connected to broker, and you could see: "Connected to broker: mqtt://127.0.0.1:1883"

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<div class="post-metadata">

**Author:** ![jlian168](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jlian168/32/43737_2.png) [@jlian168](https://discourse.nodered.org/u/jlian168)\
**Post date:** [14 July 2021 09:57 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/7 "2021-07-14T09:57:28Z")

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Dear MecatronicaMADE :

Yeah, I see.

Thank u.

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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:** [12 September 2021 09:57 UTC](https://discourse.nodered.org/t/how-to-connect-to-node-red/48341/8 "2021-09-12T09:57:50Z")

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