[GH-ISSUE #4997] Problem ipv6 api.netbird.io #10263

New Issue

saavagebueno · 2026-08-05T01:25:13-04:00

saavagebueno commented

2026-08-05 01:25:13 -04:00

Originally created by @prohand on GitHub (Dec 28, 2025).
Original GitHub issue: https://github.com/netbirdio/netbird/issues/4997

Describe the problem

Client connection to api.netbird.io Withings ipv6 adresse failled (reset connection by peer)

To Reproduce

Connect to api.netbird.io with an IPv6 adresse

Expected behavior

Can’t connect to api.netbird.io with ipv6 adresse

Are you using NetBird Cloud?

Netbird cloud

NetBird version

Last netbird cloud version

Is any other VPN software installed?

No

Debug output

2025-12-27T20:43:19Z INFO ./caller_not_available:0: 2025/12/27 20:43:19 WARNING: [core] [Channel #3 SubChannel #4]grpc: addrConn.createTransport failed to connect to {Addr: "api.netbird.io:443", ServerName: "api.netbird.io:443", BalancerAttributes: {"<%!p(pickfirstleaf.managedByPickfirstKeyType={})>": "<%!p(bool=true)>" }}. Err: connection error: desc = "transport: authentication handshake failed: read tcp [2a04:cec0:106d:82b7:acdd:98f7:279:38f]:49880->[2a04:3542:1000:910:2465:1fff:fe8a:5597]:443: read: connection reset by peer
Additional context

Sslabs see unable to connection with ipv6 adresse : https://www.ssllabs.com/ssltest/analyze.html?d=api.netbird.io

Thanks for help

Originally created by @prohand on GitHub (Dec 28, 2025). Original GitHub issue: https://github.com/netbirdio/netbird/issues/4997 **Describe the problem** Client connection to api.netbird.io Withings ipv6 adresse failled (reset connection by peer) **To Reproduce** Connect to api.netbird.io with an IPv6 adresse **Expected behavior** Can’t connect to api.netbird.io with ipv6 adresse **Are you using NetBird Cloud?** Netbird cloud **NetBird version** Last netbird cloud version **Is any other VPN software installed?** No **Debug output** `2025-12-27T20:43:19Z INFO ./caller_not_available:0: 2025/12/27 20:43:19 WARNING: [core] [Channel #3 SubChannel #4]grpc: addrConn.createTransport failed to connect to {Addr: "api.netbird.io:443", ServerName: "api.netbird.io:443", BalancerAttributes: {"<%!p(pickfirstleaf.managedByPickfirstKeyType={})>": "<%!p(bool=true)>" }}. Err: connection error: desc = "transport: authentication handshake failed: read tcp [2a04:cec0:106d:82b7:acdd:98f7:279:38f]:49880->[2a04:3542:1000:910:2465:1fff:fe8a:5597]:443: read: connection reset by peer ` **Additional context** Sslabs see unable to connection with ipv6 adresse : https://www.ssllabs.com/ssltest/analyze.html?d=api.netbird.io <img width="1179" height="827" alt="Image" src="https://github.com/user-attachments/assets/86983b0f-623d-4f7b-89ae-ec60b7780586" /> Thanks for help

saavagebueno added the triage-needed label 2026-08-05 01:25:13 -04:00

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dependabot/npm_and_yarn/proxy/web/npm_and_yarn-b39864987c

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dependabot/go_modules/aws-sdk-8f849ebaed

dependabot/github_actions/actions-a940c7c866

dependabot/go_modules/otel-e34c790afd

dependabot/go_modules/testcontainers-de325c0dd6

dependabot/go_modules/wireguard-dbd6b95108

dependabot/go_modules/pion-5f703e1eca

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

fix/ui-gtk3-support

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dependabot/go_modules/github.com/aws/aws-sdk-go-v2/service/s3-1.106.3

dependabot/go_modules/github.com/pion/stun/v3-3.1.5

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dependabot/go_modules/github.com/pires/go-proxyproto-0.15.0

dependabot/go_modules/github.com/jackc/pgx/v5-5.10.0

dependabot/go_modules/github.com/oapi-codegen/runtime-1.6.0

dependabot/go_modules/github.com/eko/gocache/lib/v4-4.2.4

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dependabot/go_modules/github.com/coreos/go-oidc/v3-3.20.0

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Reference: DYNR/netbird#10263