Thermostat shows strong Wi‑Fi signal but app reports device offline

Safety: Network configuration only; no electrical work.

Steps:

• Reboot the router and thermostat to refresh connections.
• Disable any VPN or advanced firewall rules temporarily 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 as a test (consult 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 router model and network details.