# Accessing nodered running on a laptop from a Raspberry Pi

**URL:** <https://discourse.nodered.org/t/accessing-nodered-running-on-a-laptop-from-a-raspberry-pi/41843>\
**Category:** General\
**Created:** [1 March 2021 17:47 UTC](https://discourse.nodered.org/t/accessing-nodered-running-on-a-laptop-from-a-raspberry-pi/41843 "2021-03-01T17:47:49Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Euan](https://avatars.discourse-cdn.com/v4/letter/e/898d66/32.png) [@Euan](https://discourse.nodered.org/u/Euan)\
**Post date:** [1 March 2021 17:47 UTC](https://discourse.nodered.org/t/accessing-nodered-running-on-a-laptop-from-a-raspberry-pi/41843/1 "2021-03-01T17:47:50Z")

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Hi, I'm new to Raspberry Pi. I've tried searching this question on the forum so apologies if it's been asked before.

I've loaded node-red on my pi and can access the pi from my laptop using :1880 but when i try the reverse i.e. using the browser in pi to point to a node-red running on my laptop I just get a connection error.

Any advice greatly appreciated.

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [1 March 2021 17:53 UTC](https://discourse.nodered.org/t/accessing-nodered-running-on-a-laptop-from-a-raspberry-pi/41843/2 "2021-03-01T17:53:54Z")

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What OS are you using on your laptop? There could well be a firewall running blocking access to port 1880.

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**Author:** ![Euan](https://avatars.discourse-cdn.com/v4/letter/e/898d66/32.png) [@Euan](https://discourse.nodered.org/u/Euan)\
**Post date:** [1 March 2021 18:13 UTC](https://discourse.nodered.org/t/accessing-nodered-running-on-a-laptop-from-a-raspberry-pi/41843/3 "2021-03-01T18:13:22Z")

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Thanks for your reply.  
I'm using Windows 10. I've not done anything to alter the firewall settings so it could be that. I don't really understand how firewalls work. I can use the laptop to access node-red locally on port 1880 and I can use it to access the node-red on the Pi using the hostname:1880. The problem I'm finding is when I use the pi to access the node-red running on the laptop, using the hostname:1880 in the raspberry pi browser. Do you think the adjusting the firewall could fix this and if so how would I go about that?

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**Author:** ![Euan](https://avatars.discourse-cdn.com/v4/letter/e/898d66/32.png) [@Euan](https://discourse.nodered.org/u/Euan)\
**Post date:** [1 March 2021 19:48 UTC](https://discourse.nodered.org/t/accessing-nodered-running-on-a-laptop-from-a-raspberry-pi/41843/4 "2021-03-01T19:48:32Z")

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@knolleary thanks again for the help. The firewall was the problem. Cheers, Euan

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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:** [15 March 2021 19:49 UTC](https://discourse.nodered.org/t/accessing-nodered-running-on-a-laptop-from-a-raspberry-pi/41843/5 "2021-03-15T19:49:15Z")

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