# Enterprise firewall checklist

When guests frequently reconnect or can’t see/hear each other on enterprise networks:

* Prefer UDP: Permit outbound UDP for WebRTC to STUN/TURN and peers; avoid DPI that times out UDP flows.
* TURN fallback: Allow relay (TURN) over TCP/TLS when UDP is restricted. Use your own TURN if needed.
* Open ports: Follow the port guidance documented for VDO.Ninja traffic.
* Alternate paths: Try `backup.vdo.ninja`, WHEP/WHIP viewers, or Meshcast when strict egress control is required.

Related

* `common-errors-and-known-issues/relay-candidate-being-selected.md`
* `turnserver.md`
* `advanced-settings/whip-parameters/and-whep.md`


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.vdo.ninja/common-errors-and-known-issues/enterprise-firewall-checklist.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.