The thermostat shows connected in the app but does not respond to remote commands.

Steps:

• Check internet: Verify other devices on the same network can access the internet.
• Local control test: Change the temperature directly on the thermostat. If the HVAC responds, the issue is cloud/app related, not hardware.
• Router firewall: Ensure your router is not blocking outbound connections for the thermostat. Disable overly strict firewall or parental controls temporarily.
• Update app: Update the Kasa app to the latest version and sign out/in if necessary.
• Wait and retry: If TP-Link cloud services are experiencing issues, remote control may resume automatically once service is restored.