Lux Intermittent Wi‑Fi Connectivity

Thermostat Wi‑Fi connection drops frequently or app shows thermostat offline

Advertisements

Possible Causes

Weak Wi‑Fi signal at thermostat location, Router channel congestion, Outdated router firmware

How to Fix / Troubleshooting

Safety: No electrical work is required.

  • Check signal strength: On the Lux thermostat or app, view Wi‑Fi signal strength. If low, move the router closer or install a Wi‑Fi extender.
  • Change Wi‑Fi channel: Log into your router and switch to a less congested 2.4 GHz channel (e.g., 1, 6, or 11).
  • Update router firmware: Install the latest firmware for your router from the manufacturer.
  • Assign static IP (optional): Reserve a static IP for the thermostat in your router's DHCP settings to reduce reconnect issues.
  • Re-add device: Remove and re-add the thermostat in the Lux app if connectivity issues persist.
Advertisements

Repair Difficulty

Easy 2/5

Required Part

Lux Smart Thermostat Wi‑Fi Module
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements