traefik-multi-network-missing-label-picks-wrong-backend-ip
When a container belongs to multiple Docker networks, Traefik picks an arbitrary network’s IP as the backend. If that network is not reachable from Traefik, requests silently timeout. Fix: add traefik.docker.network=<reachable-network> label so Traefik always resolves to the correct IP.
Related
- traefik-multi-network-container-backend-resolution
- traefik-multi-network-container-requires-explicit-network-la
- traefik-multi-network-backend-picks-wrong-ip
- traefik-multi-network-container-needs-explicit-network-label
- traefik-multi-network-container-backend-routing-failure
- traefik-multi-network-container-missing-label-gotcha