This chapter shows how to monitor the status of your GT900 Series router. It includes the following topics:

Monitor the Router Status Lights

There are five status lights on the front of the router. These lights indicate the current overall status of the router.

The following table defines the states of the router's status lights.

States of the Status Lights
State	When . . .
OFF	Light is not ON.
Slow BLINK	Light flashes every 1 to 2 seconds.
Fast BLINK	Light flashes 3 to 4 times per second.
WINK	Light is almost always ON, but periodically turns OFF for a fraction of a second.
ON	Light is always on and never winks or blinks.

Front Panel Status Lights
Light	State	Meaning
PWR	OFF	No DC power to the router. DC voltage is out of tolerance.
	Slow BLINK Fast BLINK WINK	DC voltage is intermittent and unreliable.
	ON	DC power is OK.
OK	OFF	Router failed diagnostic test. Router is no longer running software.
	Slow BLINK	Router is loading router software. Router is running power-up software.
	Fast BLINK	Router is running diagnostic software.
	WINK	Router is running router software.
	ON	Router is no longer running software.
WAN	OFF	WAN port is not operational or enabled.
	Slow BLINK Fast BLINK	N/A
	WINK	WAN port is operational and is sending or receiving packets.
	ON	WAN port is operational, but there is no network traffic.
ETH 1 ETH 2	OFF	Ethernet port is not operational.
	Slow BLINK	Router is downloading a file via the Ethernet port.
	Fast BLINK	N/A
	WINK	Ethernet port is operational and is sending or receiving packets.
	ON	Ethernet port is operational, but there is no network traffic.

The router also has two status lights (LEDs) for the LAN connector on the back panel. The left light is for link status, and the right light is for activity status.

Router Back Panel Status Lights
Light	State	Meaning
Link (RJ-45) (Left)	OFF	No physical connection to the Ethernet hub or PC.
	Slow BLINK Fast BLINK WINK	Unreliable connection to Ethernet or hub.
	ON	Proper physical connection to Ethernet or hub.
Activity (RJ-45) (Right)	OFF	No network traffic to or from the router.
	Slow BLINK Fast BLINK WINK ON	Ethernet port is sending or receiving packets.