Although Logitech discontinued the Harmony line, many users still rely on these universal remote systems. This guide helps troubleshoot common Harmony Hub issues.
Hub Not Connecting to WiFi
WiFi connectivity problems:
- 2.4GHz network: Harmony Hub only works with 2.4GHz WiFi
- Bluetooth setup: Initial setup uses Bluetooth - ensure phone Bluetooth is on
- Factory reset: Hold reset button (pinhole on bottom) until light blinks
- Network change: After changing routers/passwords, use Bluetooth to reconfigure WiFi
Activities Not Working Properly
When activities don't control devices correctly:
- IR line of sight: Hub needs clear line of sight to devices (or use IR extenders)
- Device power state: Devices may be out of sync - run "Help" in Harmony app
- Command delays: Add inter-device delays in activity settings for older devices
- IR blaster positioning: Place mini blasters directly on device IR receivers
- Power toggle: Set devices to "discrete" power commands if available
App Shows Hub Offline
When the Harmony app can't find the hub:
- Same network: Phone and hub must be on same WiFi network
- Hub reboot: Unplug hub for 10 seconds
- Check LED: Solid green = connected; blinking = trying to connect
- Router reboot: Full network restart often resolves discovery
- Static IP: Assign static IP to hub to prevent IP changes
Home Assistant Integration
For HA users preserving Harmony functionality:
- Official integration: Harmony integrates directly with Home Assistant
- Activities as switches: Harmony activities appear as switch entities
- Send commands: Can send specific IR commands via service calls
- Backup config: Export Harmony configuration while Logitech servers still exist
Future-Proofing
Since Harmony is discontinued:
- Local control: Home Assistant integration works locally without cloud
- Alternative hubs: Consider Broadlink or SofaBaton as future replacements
- Keep hub: As long as hardware works, hub functions independently of Logitech cloud