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The status of the LEDs on your modem/router is important for verifying that the CPE is functioning properly. The DSL-side lights will show that it is training up to the DSLAM (Digital Subscriber Line Access Multiplexer -- a network device located at a telephone company central office) and passing traffic. The LAN-side lights will show whether or not it is working on your network. The following chart provides examples.

Light

Color

Indications

PWR

Green:
Off:

Power is ON
Power is OFF

TEST

Yellow:
Green (2 sec blink):
Off:

Running Power on Self Test
Self Test successful (heartbeat)
Router failed to start or
Router is shut down

LINK

Yellow:
Green:
Off:

Establishing DSL modem link
DSL modem link successful
DSL modem link is shut down

WAN

Green flashing:
Off:

WAN transmissions detected
No WAN transmissions detected

LANT

Green flashing:
Off:

Transmitting LAN traffic
Not transmitting LAN traffic

LANR

Green flashing:
Off:

Receiving LAN traffic
Not receiving LAN traffic

If your line is out of service, please Contact Us to open a trouble ticket. AT&T DSL Customer Care will diagnose the problem and determine a resolution.

If AT&T DSL Customer Care diagnoses a problem in your router/bridge, and you have

• purchased the Managed Option:
  
  AT&T owns the router and the router software configuration (for example, up to the LAN port on the CPE), and is responsible for fixing CPE router hardware and configuration problems.
  
  
• not purchased the Managed Option or if your router/bridge is out of warranty:
  
  You may need to contact the equipment vendor or your System Administrator.

If you are an unmanaged customer and you are still experiencing problems with connectivity or routing with your router/bridge, please go to the appropriate equipment vendor web site. These sites contain useful FAQs, User Manuals, and configuration assistance.

Netopia:
http://www.netopia.com/support/resources/hdwr_rseries.html

Broadxent:
http://www.broadxent.com/products/products_index.asp

Zyxel:
http://www.zyxel.com/support/knowledgebase.php