Traefik seems to be constantly blocked

Traefik Traefik v3 (latest)
1

Hey,
Recently I've started with Traefik to provide extra layer of security to my selfhosted apps but I'm unable to configure it in proper way. I've tried many tutorials, docs and everything should work but not.
I suspect that something is wrong with my home network.
I'm using Unifi Controrler as Home Network software (Unifi Dream Router), also I'm using AdGuard Home but don't know that it can even interfere with this.
I'm using Traefik with Cloudflare, My A and WWW Record is pointing to my WAN (Public IP), CNAME points (for now) to cloudflare tunnel at the moment, but eariler it was to any of my services subdomain.

Here is my traefik.yml

traefik.yml 
global:
  checkNewVersion: true
  sendAnonymousUsage: false

serversTransport:
  insecureSkipVerify: true

entryPoints:
  # Not used in apps, but redirect everything from HTTP to HTTPS
  http:
    address: :80
    forwardedHeaders:
      trustedIPs: &trustedIps
        # Start of Clouflare public IP list for HTTP requests, remove this if you don't use it
        - 173.245.48.0/20
        - 103.21.244.0/22
        - 103.22.200.0/22
        - 103.31.4.0/22
        - 141.101.64.0/18
        - 108.162.192.0/18
        - 190.93.240.0/20
        - 188.114.96.0/20
        - 197.234.240.0/22
        - 198.41.128.0/17
        - 162.158.0.0/15
        - 104.16.0.0/13
        - 104.24.0.0/14
        - 172.64.0.0/13
        - 131.0.72.0/22
        - 2400:cb00::/32
        - 2606:4700::/32
        - 2803:f800::/32
        - 2405:b500::/32
        - 2405:8100::/32
        - 2a06:98c0::/29
        - 2c0f:f248::/32
        # End of Cloudlare public IP list
    http:
      redirections:
        entryPoint:
          to: https
          scheme: https

  # HTTPS endpoint, with domain wildcard
  https:
    address: :443
    forwardedHeaders:
      # Reuse list of Cloudflare Trusted IP's above for HTTPS requests
      trustedIPs: *trustedIps
    http:
      tls:
        # Generate a wildcard domain certificate
        certResolver: letsencrypt
        domains:
          - main: redacted.ovh
            sans:
              - '*.redacted.ovh'
      middlewares:
        - securityHeaders@file

providers:
  providersThrottleDuration: 2s

  # File provider for connecting things that are outside of docker / defining middleware
  file:
    filename: /etc/traefik/fileConfig.yml
    watch: true

  # Docker provider for connecting all apps that are inside of the docker network
  docker:
    watch: true
    network: docker_network    # Add Your Docker Network Name Here
    # Default host rule to containername.domain.example
    defaultRule: "Host(`{{ lower (trimPrefix `/` .Name )}}.redacted.ovh`)"    # Replace with your domain
    #swarmModeRefreshSeconds: 15s #comment out or remove this line if using traefik v3
    exposedByDefault: false
    endpoint: "tcp://dockersocket:2375" # Uncomment if you are using docker socket proxy

# Enable traefik ui
api:
  dashboard: true
  insecure: true

# Log level INFO|DEBUG|ERROR
log:
  level: INFO

# Use letsencrypt to generate ssl serficiates
certificatesResolvers:
  letsencrypt:
    acme:
      email: redacted@gmail.com
      storage: /etc/traefik/acme.json
      dnsChallenge:
        provider: cloudflare
        # Used to make sure the dns challenge is propagated to the rights dns servers
        resolvers:
          - "1.1.1.1:53"
          - "1.0.0.1:53"
fileConfig.yml 

  ## EXTERNAL ROUTING - Only use if you want to proxy something manually ##
  routers:
    overseerr:
      entryPoints:
        - https
      rule: 'Host(`redacted.redacted.ovh`)'
      service: overseerr
      middlewares:
         - "auth"  
  ## SERVICES ##
  services:
    overseerr:
      loadBalancer:
        servers:
          - url: http://192.168.1.79:5056/

  ## MIDDLEWARES ##
  middlewares:
    # Only Allow Local networks
    local-ipwhitelist:
      ipWhiteList:
        sourceRange: 
          - 127.0.0.1/32 # localhost
          - 192.168.1.1/24 # LAN Subnet
  
    # Authelia guard
    auth:
      forwardauth:
        address: http://auth:9091/api/verify?rd=https://auth.domain.com/ 
        trustForwardHeader: true
        authResponseHeaders:
          - Remote-User
          - Remote-Groups
          - Remote-Name
          - Remote-Email
  
    # Authelia basic auth guard
    auth-basic:
      forwardauth:
        address: http://auth:9091/api/verify?auth=basic 
        trustForwardHeader: true
        authResponseHeaders:
          - Remote-User
          - Remote-Groups
          - Remote-Name
          - Remote-Email

    # Security headers
    securityHeaders:
      headers:
        customResponseHeaders:
          X-Robots-Tag: "none,noarchive,nosnippet,notranslate,noimageindex"
          X-Forwarded-Proto: "https"
          server: ""
        customRequestHeaders:
          X-Forwarded-Proto: "https"
        sslProxyHeaders:
          X-Forwarded-Proto: "https"
        referrerPolicy: "same-origin"
        hostsProxyHeaders:
          - "X-Forwarded-Host"
        contentTypeNosniff: true
        browserXssFilter: true
        forceSTSHeader: true
        stsIncludeSubdomains: true
        stsSeconds: 63072000
        stsPreload: true
 
# Only use secure ciphers - https://ssl-config.mozilla.org/#server=traefik&version=2.6.0&config=intermediate&guideline=5.6              
tls:
  options:
    default:
      minVersion: VersionTLS12
      cipherSuites:
        - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
        - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
        - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
        - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305```

Traefik tells that everything is okay, but everytime on every configured service I'm getting "Bad gateway Error code 502" from Cloudflare or DNS_PROBE_POSSIBLE from browser.

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Please, help me, I'm so confused what to do now.

2

Congrats on this very complicated setup: Cloudflare, AdGuard, socket-proxy.

Step 1 would be to enable and check Traefik debug log (doc) and Traefik access log in JSON format (doc).

Alternatively you could simplify testing the different parts, for example replace Traefik with simple traefik/whoami (doc) to see if CF->Home works