🧩 HASS.Agent Media Player Not Showing Up in Home Assistant (MQTT + Local API Functional, but No Entity Created)

Third party integrations
1

System Setup

  • PC: Windows Server / Windows 10 system
  • HASS.Agent Version: Latest (2022.14.0)
  • Home Assistant Version: Core 2025.10.0 (Supervisor on qemux86-64)
  • MQTT Broker: Mosquitto (core-mosquitto, port 1883)
  • Integration: HASS.Agent integration installed via HACS
  • Goal: Use PC’s default speakers (ceiling speakers) as a Home Assistant media_player for TTS and automation playback
  • Problem: HASS.Agent connects fine via MQTT and shows all sensors/buttons, but no media_player entity ever appears.

:white_check_mark: What Works

  • HASS.Agent connects successfully to MQTT broker
  • MQTT discovery messages publish correctly for all sensors/buttons
  • PC is visible in HA under MQTT → Devices
  • Local API (port 5115) responds (http://localhost:5115/api/info and /api/connection return “Method Not Implemented,” confirming listener is up)
  • Satellite Service shows Running under Windows Services
  • Other functions (buttons, sensors, hotkeys, commands) appear and work normally

:x: What Doesn’t Work

  • No media_player topic ever publishes to MQTT (homeassistant/media_player/WIN-XXXX/config)
  • No media_player entity ever created in Home Assistant
  • “Enable Media Player Functionality” in HASS.Agent doesn’t trigger MQTT publish
  • Re-enabling or restarting HASS.Agent doesn’t help
  • Local API access works but doesn’t register to HA
  • Tried both MQTT mode and Local API mode — neither registers

:wrench: Fixes / Steps Already Tried

  1. Verified HASS.Agent integration installed via HACS (latest version)
  2. Removed and re-added integration multiple times
  3. Updated Home Assistant core, supervisor, and all add-ons
  4. Verified Mosquitto credentials and connection (mosquitto_sub test confirms comms)
  5. Checked discovery prefix (homeassistant) matches on both ends
  6. Toggled Media Player ON/OFF, saved config, restarted HASS.Agent
  7. Manually installed and verified HASS.Agent.Service.exe (Local API service) is running
  8. Confirmed Windows Firewall allows inbound/outbound TCP 5115
  9. Restarted both HASS.Agent app and HA several times
  10. Ran ha supervisor repair, ha core restart, and confirmed supervisor healthy
  11. Verified via ha resolution info that all checks pass
  12. Tried both MQTT autodiscovery and manual configuration
  13. Confirmed via mosquitto_sub that all button topics appear — still no media player topic
  14. Verified Windows audio output devices (Realtek speakers are default and functional)

:clipboard: Observed Behavior

  • HASS.Agent publishes topics like:
homeassistant/button/WIN-XXXX_ToggleClouds/config

but never publishes:

homeassistant/media_player/WIN-XXXX/config
  • The Media Player tab in HASS.Agent only shows an enable checkbox — no device output selector
  • Accessing http://localhost:5115/api/media returns “Connection refused”
  • Attempting to reinstall or repair HASS.Agent Service sometimes yields “path not found”

:dart: Goal

I just want Home Assistant to detect my PC’s default speakers (via HASS.Agent) as a media_player entity for automations (TTS, doorbell sounds, ambient playback), without breaking my other audio setups like the rainforest background loop.

:brain: Questions / Help Needed

  • Why won’t HASS.Agent publish the media_player discovery topic even when MQTT + Local API are working?
  • Is there a known version mismatch between HASS.Agent (2022.14.0) and the HACS integration?
  • Can the media_player entity be forced manually (via MQTT discovery)?
  • Could the Windows Server environment or audio session permissions block the registration?
  • Any reliable workaround (DLNA, Browser Mod, etc.) to route HA audio through local PC speakers permanently?

:receipt: Screenshots / Diagnostics

  • ha resolution info + ha supervisor info confirming system healthy
  • MQTT logs showing button/sensor topics but no media_player topic
  • localhost:5115 test page results
  • Windows Services showing HASS.Agent Satellite Service running
  • Audio output list (Realtek speakers = default)

:jigsaw: Summary

Everything in HASS.Agent works perfectly except the media_player entity.
MQTT and Local API are healthy, integration installed, all discovery topics publishing except the one that actually creates the media player.

Would really appreciate any insight from anyone who’s dealt with this — or confirmation if this feature is currently broken with the latest builds.

1 Like
2

I fixed the issue by replacing the HASS.Agent integration with HASS.Agent 2.