Traefik 2.11.1 & 3.0.0-rc4 break websocket connections

[thielj]

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 traefik/traefik#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

[github-actions]

@thielj: Hello! 👋

This issue is being automatically closed because it does not follow the issue template. Please DO NOT open blank issues and use our issue-templates instead.
Blank Issues do not contain the context nessesary for a good discussions.

[thielj]

NOTE: Traefik 2.11.2 and 3.0.0-rc5 have actually removed the tcp.lingeringTimeout setting and more importantly, will fail to start if these are present

[Frank Elsinga]

I am going to unpin this because as far as I read traefik/traefik#10598, this is fixed