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Some peers in relayed connection cannot ping each other #1959

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opened 2025-11-20 06:10:14 -05:00 by saavagebueno · 2 comments
saavagebueno commented 2025-11-20 06:10:14 -05:00
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Originally created by @Silex on GitHub (Jun 12, 2025).

Describe the problem

When the connection is relayed, most peers can see each other fine but some cannot.

  • pictet-trb6 can ping both stvs-pv-laptop1/stvs-mp-laptop1 and vice versa.
  • stvs-pv-laptop1 cannot ping stvs-mp-laptop1.
  • stvs-mp-laptop1 cannot ping stvs-pv-laptop1.

Same happen for other services (e.g HTTP server running on stvs-pv-laptop1).

To Reproduce

Add many peers and ping each other, some of them never answer to ping.

Expected behavior

All peers can ping each others

Are you using NetBird Cloud?

Self hosted netbird.

NetBird version

0.46.0, server & clients.

Is any other VPN software installed?

No

Debug output

2 minutes debugging from:

  • stvs-pv-laptop1: c33053488251f90ea4683596101892e50e3e31e8030de3052d05b2b3fe6d2468/3b0fb594-5396-4c07-80fa-f2c3e056fdbd
  • stvs-mp-laptop1: c33053488251f90ea4683596101892e50e3e31e8030de3052d05b2b3fe6d2468/06943dd2-7233-4b7c-baf9-242986eb0e08

If needed I can also upload the .zip here.

Screenshots

No screenshots.

Additional context

Ask if you need more context.

Have you tried these troubleshooting steps?

  • Reviewed client troubleshooting (if applicable)
  • Checked for newer NetBird versions
  • Searched for similar issues on GitHub (including closed ones)
  • Restarted the NetBird client
  • Disabled other VPN software
  • Checked firewall settings
Originally created by @Silex on GitHub (Jun 12, 2025). **Describe the problem** When the connection is relayed, most peers can see each other fine but some cannot. - pictet-trb6 can ping both stvs-pv-laptop1/stvs-mp-laptop1 and vice versa. - stvs-pv-laptop1 cannot ping stvs-mp-laptop1. - stvs-mp-laptop1 cannot ping stvs-pv-laptop1. Same happen for other services (e.g HTTP server running on stvs-pv-laptop1). **To Reproduce** Add many peers and ping each other, some of them never answer to ping. **Expected behavior** All peers can ping each others **Are you using NetBird Cloud?** Self hosted netbird. **NetBird version** 0.46.0, server & clients. **Is any other VPN software installed?** No **Debug output** 2 minutes debugging from: - stvs-pv-laptop1: c33053488251f90ea4683596101892e50e3e31e8030de3052d05b2b3fe6d2468/3b0fb594-5396-4c07-80fa-f2c3e056fdbd - stvs-mp-laptop1: c33053488251f90ea4683596101892e50e3e31e8030de3052d05b2b3fe6d2468/06943dd2-7233-4b7c-baf9-242986eb0e08 If needed I can also upload the .zip here. **Screenshots** No screenshots. **Additional context** Ask if you need more context. **Have you tried these troubleshooting steps?** - [x] Reviewed [client troubleshooting](https://docs.netbird.io/how-to/troubleshooting-client) (if applicable) - [x] Checked for newer NetBird versions - [x] Searched for similar issues on GitHub (including closed ones) - [x] Restarted the NetBird client - [x] Disabled other VPN software - [x] Checked firewall settings
saavagebueno added the triage-needed label 2025-11-20 06:10:14 -05:00
saavagebueno commented 2025-11-20 06:10:16 -05:00
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@Silex commented on GitHub (Jun 13, 2025):

Ah, apparently it happens between peers on windows 10 and peers on windows 11. Not sure if it could be that, but basically I'm on windows 10 and I can ping everyone but the peers on windows 11 (two hosts).

Might be a coincidence but it's interesting.

@Silex commented on GitHub (Jun 13, 2025): Ah, _apparently_ it happens between peers on windows 10 and peers on windows 11. Not sure if it could be that, but basically I'm on windows 10 and I can ping everyone but the peers on windows 11 (two hosts). Might be a coincidence but it's interesting.
saavagebueno commented 2025-11-20 06:10:16 -05:00
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@Silex commented on GitHub (Jun 17, 2025):

It works now, not sure why.

@Silex commented on GitHub (Jun 17, 2025): It works now, not sure why.
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Reference: SVI/netbird#1959
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