DownStreamStatus: 504 / OriginStatus: 504

Traefik Traefik v3 (latest)
,
1

Hi,

I have updated Traefik (from 3.3.4 to 3.6.8 ) and Crowdsec (from 1.6.10 to 1.7.6 ).

The problem I do have today was already existing before the update.

I have a mix of dockers and VM running under a proxmox cluster (three nodes).

All my servers are accessible from outside, all except Homeassistant (but accessible in local). My HA is running as a standalone server (green box). I haven’t change any thing concerning Traefik or Crowdsec config.

As you can see on the logs, I do have a 504 error:

{"ClientAddr":"172.64.223.10:13042","ClientHost":"172.64.223.10","ClientPort":"13042","ClientUsername":"-","DownstreamContentSize":15,"DownstreamStatus":504,"Duration":30037767742,"OriginContentSize":15,"OriginDuration":30000526226,"OriginStatus":504,"Overhead":37241516,"RequestAddr":"haoss.domain.tld","RequestContentSize":0,"RequestCount":6580,"RequestHost":"haoss.domain.tld","RequestMethod":"GET","RequestPath":"/favicon.ico","RequestPort":"-","RequestProtocol":"HTTP/2.0","RequestScheme":"https","RetryAttempts":0,"RouterName":"homeassistant@file","ServiceAddr":"ha_ip:8123","ServiceName":"homeassistant@file","ServiceURL":"http://ha_ip:8123","StartLocal":"2026-02-22T12:03:15.663899799+02:00","StartUTC":"2026-02-22T10:03:15.663899799Z","TLSCipher":"TLS_CHACHA20_POLY1305_SHA256","TLSVersion":"1.3","entryPointName":"https-external","level":"info","msg":"","time":"2026-02-22T12:03:45+02:00"}

No “decision” from Crowdsec.

Any idea where to start ?

Thx

2

OriginStatus is the return status code of your target service. Check the target service logs, I would expect you see error messages there.

3

If I am not mistaken, when you said “target service” you are meaning my HA box ?

If this is right, I have had a look to logs of my HA server (core, supervisor and host) I didn’t find anything related to my issue ….

4

My bad, 504 is gateway timeout. So it seems Traefik can not reach your target service.

Have you tried a ping or curl from the Traefik node? Within Traefik container, you can try wget.

Share your Traefik static and dynamic config, and compose file(s) if used.

5

Working …. my bad too :slight_smile:

Proxmox fw pb :frowning:

Very sorry.