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Problem Description

Your Hubitat Elevation C-8 hub is not responding, showing devices as offline, or having issues with Zigbee or Z-Wave device communication.

Common Causes

  • Hub needs a reboot
  • Database has grown too large
  • Zigbee or Z-Wave radio interference
  • Too many ghost devices
  • Network connectivity issues

Solutions

1. Soft Reboot the Hub

  1. Go to Settings then Shutdown
  2. Click Reboot
  3. Wait 2-3 minutes for full restart
  4. Check if devices respond

2. Check Hub Status

  1. Go to hub IP address in browser
  2. Click Diagnostic Tool in menu
  3. Review hub health metrics
  4. Check database size (should be under 50MB)

3. Fix Z-Wave Ghost Devices

  1. Go to Settings then Z-Wave Details
  2. Look for devices with no route or marked as failed
  3. Try Refresh on the ghost device
  4. Then try Remove if device is truly gone
  5. May need to exclude and re-include actual device

4. Rebuild Zigbee Network

  1. Power off all battery Zigbee devices by removing batteries
  2. Leave powered Zigbee devices on (they form the mesh)
  3. Reboot the hub
  4. Wait 24 hours for mesh to rebuild
  5. Then power on battery devices one at a time

5. Reduce Interference

  • Move hub away from WiFi router (at least 3 feet)
  • Avoid USB 3.0 devices near hub
  • Keep away from microwaves and cordless phones
  • Use USB extension for external Zigbee/Z-Wave sticks if applicable

6. Soft Reset (Preserves Z-Wave)

  1. Go to Settings then Diagnostic Tool
  2. Select Soft Reset
  3. Hub will reset but keep Z-Wave radio paired
  4. Restore a recent backup after reset

When to Contact Support

Contact Hubitat Support if the hub LED shows error patterns, will not boot to web interface, or you need to perform a full factory reset.