Thermostat frequently disconnects from Wi-Fi or Emerson app

Safety first: No high-voltage work is required. Do not remove the thermostat from the wall unless necessary.

Steps to troubleshoot:

• 1. Check signal strength: In the Emerson app or thermostat Wi-Fi menu, check the reported signal strength. If low, move the router closer or add a Wi-Fi extender.
• 2. Router settings: Ensure the router is broadcasting a 2.4 GHz network with WPA2 security. Avoid using enterprise or captive portal networks.
• 3. Change Wi-Fi channel: Log into your router and change the 2.4 GHz channel to a less congested one (e.g., 1, 6, or 11).
• 4. Assign static IP (advanced): For persistent issues, assign a DHCP reservation or static IP to the thermostat in your router settings.
• 5. Reset network settings: On the thermostat, forget the current network and re-add it using the Emerson app.

When to call a professional: If other devices work fine and the thermostat still drops offline frequently, contact Emerson support; the internal Wi-Fi module may be failing.