Thermostat shows a strong Wi‑Fi signal, but the app reports the device offline.

Safety: Network configuration only; no electrical work.

Steps:

• Reboot the router and thermostat to refresh connections.
• Temporarily disable any VPN or advanced firewall rules to test connectivity.
• If using a 4G/5G router or CGNAT connection, check with your ISP whether outbound connections required by Glow‑worm devices are allowed.
• Place the thermostat in the router's DMZ or create an outbound allow rule for its IP address as a test (consult your router manual).

Remedy:

• If the device comes online when restrictions are lifted, adjust firewall rules permanently to allow the thermostat’s traffic.
• If still offline, contact Glow‑worm support with your router model and network details.