LEDs

 

 

Power

 

 

 

 

 

 

 

 

 

 

 

 

 

Solid green: Power is on.

 

 

 

 

 

 

 

 

 

 

 

Off: Power is off.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Online

 

 

 

(Cable Link)

Green blinking: The cable modem is on-line and processing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

traffic.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Off: The cable modem is off line.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

US (Upstream)

1/2 solid amber: Upstream Channel 1 is in use.

 

 

 

 

 

 

 

 

 

 

 

1/2 solid green: Upstream Channels 1 and 2 are in use.

 

 

 

 

 

 

 

 

 

 

 

3/4 solid amber: Upstream Channels 1, 2, and 3 are in use.

 

 

 

 

 

 

 

 

 

 

 

3/4 solid green: Upstream Channels 1, 2, 3, and 4 are in use.

 

 

 

 

 

 

 

 

 

 

 

Off: No upstream channel is in use.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DS (Downstream)

1/2 solid amber: Downstream Channel 1 is in use.

 

 

 

 

 

 

 

 

 

 

 

1/2 solid green: Downstream Channels 1 and 2 are in use.

 

 

 

 

 

 

 

 

 

 

 

3/4 solid amber: Downstream Channels 1, 2, and 3 are in use.

 

 

 

 

 

 

 

 

 

 

 

3/4 solid green: Downstream Channels 1, 2, 3, and 4 are in use.

 

 

 

 

 

 

 

 

 

 

 

Off: No downstream channel is in use.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solid green: A 1 Gbps device is connected and detected on the

 

 

Ethernet

 

Ethernet port.

 

 

Solid Amber: A 100 Mbps device is connected and detected on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the Ethernet port.

 

 

 

 

 

 

 

 

 

 

 

Solid Red: A 10 Mbps device is connected and detected on the

 

 

 

 

 

 

 

 

 

 

 

 

Ethernet port.

 

 

 

 

 

 

 

 

 

 

 

Blinking: There is data traffic on the Ethernet port.

 

 

 

 

 

 

 

 

 

 

 

Off: No device is detected on the Ethernet port.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

September 2011

Troubleshooting

No LEDs are lit

The cable modem has no power. Make sure that:

on the cable

The power adapter is correctly connected to the cable modem.

modem

The power adapter is correctly connected to a functioning power

 

 

 

outlet. If it is to a power strip, make sure the power strip is turned on.

 

You are using the correct power adapter.

 

 

Online LED

There is a hardware connection problem, or you do not have cable

does not light

service. Do the following:

up

Make sure the cable connector is securely plugged in at the cable

 

 

modem.

 

Turn the power to the cable modem off and on.

 

• You might not have active cable service yet. Contact your provider to

 

 

verify activation.

 

 

Ethernet LED

There is a hardware connection problem. Do the following:

does not light

Make sure the cable connector is securely plugged in to the cable

up even though

 

modem and the computer.

a device is

If you are not using the cable included with the cable modem, check

attached

 

that the Ethernet cable is a straight-through patch cable.

 

 

 

 

You cannot

It can take up to 15 minutes to establish a connection the first time you

connect to the

power on your cable modem. Always leave your cable modem plugged

Internet

in to AC power and connected to the cable system. Do the following:

 

Check your cable connections. Connectors should be finger tight.

 

Make sure that you have powered up in the following sequence:

 

 

- Turn on your cable modem first, and wait until the LEDs stop

 

 

flashing.

 

 

- If your computer is connected to the cable modem, turn on the

 

 

computer.

 

If you have a home network, check the TCP/IP configuration.

 

 

- For Windows, the network properties should be set to obtain an IP

 

 

address automatically.

 

 

- For Macintosh computers, the TCP/IP (or Network) control panel

 

 

should be set to Using DHCP Server.

 

 

 

Technical Support

Thank you for selecting NETGEAR products.

After installing your device, locate the serial number on the label of your product and use it to register your product at www.netgear.com/register. Registration is required before you can use the telephone support service. Registration through the NETGEAR website is strongly recommended.

Go to support.netgear.com for product updates and web support. NETGEAR technical support: 1-888-638-4327, for US and Canada only.

For complete DoC please visit the NETGEAR EU Declarations of Conformity website at: support.netgear.com/app/answers/detail/a_id/11621/.

For GNU General Public License (GPL) related information, go to support.netgear.com/app/answers/detail/a_id/2649.

WARNING!!

DO not stack equipment, or place equipment in tight spaces or in drawers. Be sure your equipment is surrounded by at least 2 inches of air space.

This symbol was placed in accordance with the European Union Directive 2002/96 on the Waste Electrical and Electronic Equipment (the WEEE Directive). If disposed of within the European Union, this product should be treated and recycled in accordance with the laws of your jurisdiction implementing the WEEE Directive.

©2011 by NETGEAR, Inc. All rights reserved. NETGEAR and the NETGEAR logo are registered trademarks of NETGEAR, Inc. in the United States and/or other countries. Other brand and product names are trademarks or registered trademarks of their respective holders. Information is subject to change without notice.

Page 2
Image 2
NETGEAR CMD31T-100NAS manual LEDs, Troubleshooting, Technical Support