---
title: Broadcaster Authorization plugin error
slug: troubleshooting/broadcaster-authorization-plugin-error
createdAt: 2025-04-09T21:01:44.563Z
---

### ERROR

The "Broadcaster Authorization Plugin" error means that either someone has changed the authentication settings on the broadcaster or something is preventing the Broadcaster from being able to do authentication calls against ZEN Master.

The Broadcaster does a health check on the authorization server periodically - if that fails but it's still connected to ZEN Master via the tunnel ZEN will catch that and report an error.'

### RESOLUTION

The issue will always be related to network or DNS. 

Ports below for ZEN Master must be open and IPs whitelisted.

| 80/443 | TCP<br />  | Outbound\* | Communication to Zixi License server - <br />- license.zixi.com<br />- license2.zixi.com<br />- 52.72.218.41<br />- 34.195.97.223<br />- 3.140.62.221<br />- 3.137.16.26<br />ZEN Master Backend Servers<br />- 18.210.103.157<br />- 23.20.44.73<br />- 34.200.88.233<br />- 34.238.1.65<br />- 35.170.111.151<br />- 52.4.9.203 |
| ------ | ---------- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |