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voc0der edited this page Mar 7, 2026 · 3 revisions

Synology

If ytdl-material starts but you cannot reach the web UI/API from your LAN, Synology DSM firewall rules are a common cause.

Firewall fix (DSM)

  1. Open DSM Control Panel -> Security -> Firewall.
  2. Edit the active firewall profile for the interface your LAN clients use.
  3. Add an Allow rule for your LAN/private subnet (for example, your exact 192.168.x.0/24 range).
  4. Place that Allow rule above broader Deny rules.
  5. Apply changes and retest http://<nas-ip>:<ytdl-port>.

If you use Docker bridge/macvlan networking, also allow the relevant Docker subnet.

The original report behind this note is here: https://github.com/Tzahi12345/YoutubeDL-Material/issues/449#issuecomment-921386012

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