Traefik 2.11.1 & 3.0.0-rc4 break websocket connections #3258

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opened 2026-02-28 03:23:29 -05:00 by deekerman · 0 comments

deekerman commented

2026-02-28 03:23:29 -05:00

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Originally created by @thielj on GitHub (Apr 11, 2024).

EDIT: The issue is fixed in Traefik 2.11.2 and 3.0.0-rc5.

Note that the tcp.lingeringTimeout setting has actually been removed. More importantly, Traefik (at least v3) will fail to start if these are present! See migration guide.

See https://github.com/traefik/traefik/issues/10598

Fix: roll-back or wait for the update

~~Workaround: add this to your entrypoint in eg. traefikyml (static config):~~

    transport:
      respondingTimeouts:
        tcp:
          lingeringTimeout: 180

Originally created by @thielj on GitHub (Apr 11, 2024). EDIT: The issue is fixed in Traefik 2.11.2 and 3.0.0-rc5. Note that the tcp.lingeringTimeout setting has actually been removed. **More importantly, Traefik (at least v3) will fail to start if these are present!** See [migration guide](https://doc.traefik.io/traefik/migration/v2/#v2112). --- See https://github.com/traefik/traefik/issues/10598 Fix: roll-back or wait for the update ~Workaround: add this to your entrypoint in eg. traefikyml (static config):~ ``` transport: respondingTimeouts: tcp: lingeringTimeout: 180 ```