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1.3 Your wireless router
3G/4G signal strength LED
1 lit LED: Weak signal
2 lit LEDs: Normal signal
3 lit LEDs: Strong signal
Mobile Broadband LED
White: 4G connection is established.
Blue: 3G connection is established.
Red: No mobile broadband connection.
Off: No SIM card is detected.
WAN (Internet) LED
Off: No data activity or no physical connection.
On: Has physical connection to a wide area network (WAN).
5GHz WiFi LED
Off: No 5GHz signal.
On: 5GHz wireless is ready.
Flashing: Transmitting or receiving data via wireless connection.
2.4GHz WiFi LED
Off: No 2.4GHz signal.
On: 2.4GHz wireless is ready.
Flashing: Transmitting or receiving data via wireless connection.
Power LED
Off: No power.
On: Device is ready.
Flashing slowly: Rescue mode
Flashing quickly: WPS is processing.