Dashboard returns 404 when port is different than 8080

Traefik Traefik v3 (latest)
,
1

I'm trying to setup traefic for my app and no matter what i tried, dashboard would not work when i change port, so i decided to start from scratch and i took this sample from documentation

version: "3.3"

services:

  traefik:
    image: "traefik:v3.2"
    container_name: "traefik-demo"
    command:
      - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--api.dashboard=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entryPoints.web.address=:80"
      - "--entryPoints.dashboard.address=:9090" 
    ports:
      - "80:80"
      - "9090:9090"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

  whoami:
    image: "traefik/whoami"
    container_name: "simple-service"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.whoami.rule=Host(`whoami.localhost`)"
      - "traefik.http.routers.whoami.entrypoints=web"

when i use port 8080 as in documentation, i can access dashboard.
when i change it to 9090, i get 404 error and there is no traces of request in traefik logs.
Can someone help what i'm doing wrong?

2

When insecure mode is enabled, one can access the dashboard on the traefik port (default: 8080 ) of the Traefik instance, at the following URL: http://<Traefik IP>:8080/dashboard/ (trailing slash is mandatory).

Doc

insecure will automatically create an entrypoint on 8080. You could use ports: 9090:8080.

Or don’t use insecure, check simple Traefik example.