What am I doing wrong? Unable to claim my server

Plex Media Server Remote Access
1

Using a bare-metals machine on Hetzner with Ubuntu 24.04 clean installation with Docker (+ Compose) installed only. A domain with proper DNS is mapped to the IP. When started I’m unable to claim the server regardless if I try to do it with an SSH tunnel or directly via web.
Here’s the docker compose file:

services:
  traefik:
    image: traefik:v3
    container_name: traefik
    restart: unless-stopped
    ports:
      - 443:443
      - 127.0.0.1:8080:8080
    command:
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entryPoints.websecure.address=:443"
      - "--certificatesresolvers.myresolver.acme.tlschallenge=true"
      - "--certificatesresolvers.myresolver.acme.email=******@gmail.com"
      - "--certificatesresolvers.myresolver.acme.storage=/letsencrypt/acme.json"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock"
      - "./letsencrypt:/letsencrypt"

  plex:
    ports:
     - 32400:32400/tcp
     - 8324:8324/tcp
     - 32469:32469/tcp
     - 1900:1900/udp
     - 32410:32410/udp
     - 32412:32412/udp
     - 32413:32413/udp
     - 32414:32414/udp
    container_name: plex
    image: plexinc/pms-docker:latest
    restart: unless-stopped
    environment:
      - TZ=Europe/Berlin
      - PLEX_CLAIM=claim-*****
      - ADVERTISE_IP="https://plex.******.net:443/"
      - HOSTNAME=hzPlex
    depends_on:
      - traefik
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.plex.rule=Host(`plex.******.net`)"
      - "traefik.http.routers.plex.entrypoints=websecure"
      - "traefik.http.routers.plex.tls.certresolver=myresolver"
      - "traefik.http.services.plex.loadbalancer.server.port=32400"
    volumes:
      - ./plex/db:/config
      - ./plex/tmp:/transcode
      - ./data:/data

I try with a new claim code. I can open it with either https://plex.*****.net/web or http://localhost:8888 (SSH tunnel) and I will be greeted with the “not authorized” screen after login.
The server appears in the Plex app but it says it can’t reach it. It also appears in approved devices. I guess the app can’t reach it because it should be the 443 port, but I can’t reach the server to configure that.

Edit:
Output to Docker:

plex     | [s6-init] making user provided files available at /var/run/s6/etc...exited 0.
plex     | [s6-init] ensuring user provided files have correct perms...exited 0.
plex     | [fix-attrs.d] applying ownership & permissions fixes...
plex     | [fix-attrs.d] done.
plex     | [cont-init.d] executing container initialization scripts...
plex     | [cont-init.d] 40-plex-first-run: executing...
plex     | Creating pref shell
plex     | Attempting to obtain server token from claim token
plex     |   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
plex     |                                  Dload  Upload   Total   Spent    Left  Speed
100  8210    0  8210    0     0  34351      0 --:--:-- --:--:-- --:--:-- 34351
plex     | Token obtained successfully
plex     | Plex Media Server first run setup complete
plex     | [cont-init.d] 40-plex-first-run: exited 0.
plex     | [cont-init.d] 45-plex-hw-transcode-and-connected-tuner: executing...
plex     | [cont-init.d] 45-plex-hw-transcode-and-connected-tuner: exited 0.
plex     | [cont-init.d] 50-plex-update: executing...
plex     | [cont-init.d] 50-plex-update: exited 0.
plex     | [cont-init.d] done.
plex     | [services.d] starting services
plex     | Starting Plex Media Server.
plex     | [services.d] done.
plex     | Critical: libusb_init failed

Log attached.

Plex Media Server.log (1.2 MB)

2

Since October 2023, Plex does not permit installations at Hetzner. Claiming is blocked.

Search the forum for “Hetzner.” You’ll find several threads on the topic.