[GH-ISSUE #3821] Can't connect to service by netbird address #8088

New Issue

saavagebueno · 2026-08-05T01:15:56-04:00

saavagebueno commented

2026-08-05 01:15:56 -04:00

Originally created by @netandreus on GitHub (May 13, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/3821

Originally assigned to: @nazarewk on GitHub.

Problem

I have a Netbird peer version 0.43.3 and a simple http service deployed on 8888 port on it.
I can open 8888 port from the local address, but can't open using netbird address.

Some notes

ssh opens fine with both addresses
when I downgrade netbird on this peer to version 0.39.2 it works fine.

So, I think somethings broken in the new version.

Originally created by @netandreus on GitHub (May 13, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/3821 Originally assigned to: @nazarewk on GitHub. #### Problem I have a Netbird peer version 0.43.3 and a simple http service deployed on 8888 port on it. I can open 8888 port from the local address, but can't open using netbird address. #### Some notes - ssh opens fine with both addresses - when I downgrade netbird on this peer to version 0.39.2 it works fine. So, I think somethings broken in the new version.

saavagebueno added the client config-issue labels 2026-08-05 01:15:56 -04:00

saavagebueno closed this issue

2026-08-05 01:15:56 -04:00

saavagebueno commented

2026-08-05 01:15:56 -04:00

@nazarewk commented on GitHub (May 13, 2025):

What is your operating system?
Can you confirm whether there is anything listening on the NetBird's IP address and port 8888?

@nazarewk commented on GitHub (May 13, 2025): What is your operating system? Can you confirm whether there is anything listening on the NetBird's IP address and port 8888?

saavagebueno commented

2026-08-05 01:15:56 -04:00

@netandreus commented on GitHub (May 13, 2025):

Hello, @nazarewk !
Thank you for the quick response.
OS: Ubuntu 24.04 Server
Netbird: selfhosted
Yes, I can confirm listening to the local 8888 port on any IP address (0.0.0.0:8888) and successfully connecting to it by LAN address.

@netandreus commented on GitHub (May 13, 2025): Hello, @nazarewk ! Thank you for the quick response. OS: Ubuntu 24.04 Server Netbird: selfhosted Yes, I can confirm listening to the local 8888 port on any IP address (0.0.0.0:8888) and successfully connecting to it by LAN address.

saavagebueno commented

2026-08-05 01:15:56 -04:00

@Cikaros commented on GitHub (May 14, 2025):

Have you set up any [Policies] or [Networks] for it? @netandreus
I have the same environment as you, but I can normally access it.

@Cikaros commented on GitHub (May 14, 2025): Have you set up any [Policies] or [Networks] for it? @netandreus I have the same environment as you, but I can normally access it.

saavagebueno commented

2026-08-05 01:15:56 -04:00

@netandreus commented on GitHub (May 14, 2025):

Yes, I have no [Networks] and same [Policies] for both cases (different versions).

@netandreus commented on GitHub (May 14, 2025): Yes, I have no [Networks] and same [Policies] for both cases (different versions).

saavagebueno commented

2026-08-05 01:15:56 -04:00

@Cikaros commented on GitHub (May 14, 2025):

I encountered this issue before when I didn't understand the [Policies]. Here, [Source] represents the visitor, and [Destination] is the resource group. If a specific [Protocol] is specified, specific [Ports] must be designated; otherwise, it cannot be accessed.

There are also 【Posture Checks】 here, and these checks also affect access.

I hope it is helpful to you

@Cikaros commented on GitHub (May 14, 2025): I encountered this issue before when I didn't understand the [Policies]. Here, [Source] represents the visitor, and [Destination] is the resource group. If a specific [Protocol] is specified, specific [Ports] must be designated; otherwise, it cannot be accessed. ![Image](https://github.com/user-attachments/assets/78cb91a6-1357-4119-8f05-3d571205273a) There are also 【Posture Checks】 here, and these checks also affect access. ![Image](https://github.com/user-attachments/assets/0cb7904e-362b-4636-91af-48142331c035) I hope it is helpful to you

saavagebueno commented

2026-08-05 01:15:57 -04:00

@netandreus commented on GitHub (May 16, 2025):

Yes, I think it was because some cache in netbird. I had peers with the same names. With new one - all fine.

@netandreus commented on GitHub (May 16, 2025): Yes, I think it was because some cache in netbird. I had peers with the same names. With new one - all fine.

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dependabot/go_modules/aws-sdk-8f849ebaed

dependabot/github_actions/actions-a940c7c866

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dependabot/go_modules/pion-5f703e1eca

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dependabot/go_modules/google.golang.org/grpc-1.82.1

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Reference: DYNR/netbird#8088