Thermostat frequently disconnects from Wi‑Fi and goes offline in the app

Safety first: No electrical isolation required.

Steps:

• 1. Check signal strength: On the thermostat or app, view Wi‑Fi signal level. If low, move the router closer or add a Wi‑Fi extender.
• 2. Change Wi‑Fi channel: Log into your router and switch to a less congested 2.4 GHz channel (1, 6, or 11).
• 3. Disable router power saving: Turn off aggressive power‑saving or 'smart connect' features that may drop idle devices.
• 4. Assign static IP: Reserve an IP address for the thermostat in the router DHCP settings to avoid lease conflicts.
• 5. Firmware updates: Update router and thermostat firmware to the latest versions.