TG-789 Broadband Gateway modem status lights
The article will explain the status lights found on the TG-789 Broadband Gateway modem, which may be useful during setup and troubleshooting.
| Light | State | Meaning | |
| Status | Off | Modem has no power. | |
| Red | Modem is offline. | ||
| Green | Modem is online. | ||
| Orange | Modem is rebooting or powering up. Flashes during firmware upgrade. Note: this light may briefly shine white/blue when the power button is pressed but this does not indicate anything in particular. |
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| WAN | Off | No Sync or modem has no power. | |
| Green | Modem has Sync. Flashes during initial connection activity. | ||
| Internet | Off | Modem has no power. | |
| Red | Modem has no authentication. | ||
| Green | Modem has authentication. Flashes during connection activity. | ||
| Wireless 2.4/5 | Off | WiFi off/disabled or modem has no power. | |
| Green | WiFi enabled. Flashes during WiFi network activity or when WiFi network is booting up. | ||
| WPS | Off | WPS not in use or modem has no power. | |
| Flashing orange | WPS search mode on or WPS connection in progress. | ||
| Green | WPS connection successful. | ||
| Red | WPS connection failed - try again. | ||
| Ethernet | Off | Nothing connected to LAN ports or modem has no power. | |
| Green | Ethernet connection to any LAN port. Flashes during Ethernet connection activity. | ||
| USB | Off | No USB device detected. | |
| Green | USB device detected. Flashes during connection activity. | ||
| Phone | Off | VoIP disabled or modem has no power. | |
| Green | VoIP enabled. Flashes during calls. | ||
| Wireless on/off button | N/A | Press this button to turn WiFi ability on/off. | |