Home server works at home but not from the internet
Several self-hosted web services stopped working from the wider internet, while still working normally inside the home network. The server is an NAS running Jellyfin and Immich in Docker, with public access handled through a SWAG container. The trouble began after the AT&T fiber modem was unplugged and moved during floor repair, and the NAS was moved to a different Ethernet connection in another room.
The did not change, and dynamic DNS is set up to update Cloudflare if it ever does. The ASUS router still has a static local IP saved for the NAS, has not changed, and a separate game server on a PC still works from outside the home. The files show no , the NAS firewall has not changed, and the containers are on the same custom bridge network.
The services work from both the and the hostname inside the home, and each service uses its own Cloudflare subdomain.
Key points
- The services are alive because they still work inside the home network.
- The outage started after the modem was unplugged and the server was moved to another Ethernet connection.
- The public IP, dynamic DNS, , firewall, and Docker port setup were already checked.
- Another game server on the same router still works from outside, so the whole internet connection is probably not broken.
- Cloudflare subdomains and SWAG are part of the setup, so DNS and checks matter.